информатика (не сорт) / Новая папка / PTC.Mathcad.v14.0.RIP-TBE / Mathcad / program files / Mathcad / Mathcad 14 / doc / RELNOTES

Release Notes for Mathcad 14 .small { font-size: 8pt } .mono { font-size: 10pt; font-family: Courier, monospace } .blockindent{ margin-left: 20px } Release Notes for Mathcad 14 These notes provide the most up-to-date information regarding Mathcad 14 as of 11/30/2006. Updates to this document are available online.

Table of Contents What's New in Mathcad What's New in Mathcad 14

What's New in Mathcad 13.1

What's New in Mathcad 13

Installation Information System Requirements

Contents of the Mathcad Installation CD

Installation of Mathcad

Additional Installation Information for Beta Users

Side-by-Side Installation Issues

Known Limitations

Problems Fixed Problems Fixed in Mathcad 14

Problems Fixed in Mathcad 13.1

Problems Fixed in Mathcad 13

Additional Mathcad Help Mathcad Documentation

Technical Support

Online Information

Functions that Work with the Symbolic Processor

1. What's New in Mathcad What's New in Mathcad 14 Mathcad 14 includes enhancements and new features designed to increase usability and productivity:

Internationalization: Support for UNICODE fonts and Asian operating systems has been improved.

Mathcad is now translated into nine languages (English, French, German, Italian, Spanish, Japanese, Korean, Simplified Chinese, and Traditional Chinese), and supports 15 spell-check choices.

2D Graphs: 2D graph format dialogs now contain a Number Format tab, which allows you to change the displayed precision of axes limits and ticks.

Negative radii are now allowed in polar plots, and considered as phase shifts in angles.

Solving: Odesolve has been extended with three new solvers: Adams, designed to solve non-stiff systems.

BDF, which uses backward differentiation formulas for solving stiff systems.

AdamsBDF, which dynamically detects whether a system is stiff or not and calls Adams or BDF accordingly.

Odesolve now defaults to the AdamsBDF solver, which provides more accurate results, rather than the previously used fixed solver.

New Adams, BDF, and AdamsBDF functions allow you to use these solvers without setting up a solve block. For the BDF and AdamsBDF solvers, the Jacobian (J) and tolerance (tol) arguments are optional, and either or both can be used.

A new statespace function allows you to describe linear, first-order ordinary differential equations in matrix format.

The new Jacob function computes the Jacobian of a vector function of multiple parameters, producing a matrix of expressions.

Radau accepts three new optional arguments, to yield more accurate results.

The context menu for Find has been reorganized to list solvers in the order Mathcad tries them: Levenberg-Marquardt first, Conjugate Gradient second, and Quasi-Newton last.

Math Enhancements: New derivative and scaled-derivative Airy functions (DAi, DAi.sc, DBi, DBi.sc) calculate more quickly and precisely than taking the first derivative of the built-in Airy functions.

The right-hand side of a definition can now be evaluated and the result bound to the variable; for example,

x := 1cm + 2ft = 0.934m.

A new gradient operator, available on the Calculus toolbar, returns a vector containing the partial derivatives of a function of multiple parameters.

Improvements to explicit calculation allow you to present math expressions and equations in a more standards-compliant manner.

g is now automatically defined as Euler's Constant.

Symbolics: Enhancements to Mathcad's symbolic calculation capabilities return answers to a wider range of problems and more detailed solutions for piecewise or periodic solutions. As a result of these changes, Mathcad returns some results in a different, but equivalent, form than in previous versions.

A full listing of functions that work with the symbolic engine is available in the Functions that Work with the Symbolic Processor section.

Three new functions (Numer, Denom, and IsPrime) return information about an expression or number that can be used in other functions.

Three new keywords (combine, rewrite, and confrac) extend Mathcad's symbolic capabilities.

Nine new modifiers (all, degree, domain, exp, fully, ln, using, raw, and sincos) allow you to modify various keywords.

The solve keyword and other symbolic operators now return more detailed results. New modifiers such as fully and all return complete solutions.

You can now apply vectorized functions or operators to a vector and evaluate it symbolically. Before, you could only do so numerically.

General utility: You can now compare two different XMCD worksheets, viewing math and text elements that have been added, deleted, or changed with different colored highlights. You can even view differing results due to tolerance settings or algorithms between versions of Mathcad.

You can now search and replace for text and math elements in collapsed areas.

Images can be stored in JPEG format with adjustable image quality, potentially reducing the size of your worksheets.

Activation has been replaced with a single-user license file, obtained automatically during installation (requires Internet access).

What's New in Mathcad 13.1 Mathcad 13.1 contains many bug fixes and improvements and enhancements to the following functionality:

Improved performance of references.

Better interoperability with MS Office products.

Improved usability of Fahrenheit and Celsius units.

MATLAB 7 support.

Enterprise installation improvements.

Support for execution on the Windows XP Professional 64-bit operating system.

Improved printing of the slider control.

Deprecated Worksheet Optimization. When reading a file with Worksheet Optimization enabled, Mathcad enables Optimization on each region.

What's New in Mathcad 13 Mathcad 13 features a number of improvements designed to increase your productivity and the breadth and speed of mathematical operations you can do in Mathcad.

Performance: Faster matrix algebra and faster looping in programs, solvers, and other large-data manipulation tools.

Autosave: Automatic recovery of unsaved worksheets should Mathcad crash.

2D Graph Formatting: Full Windows color palette for traces, more symbols, independent symbol, line sizing and spacing.

Program Debugging: Trace and pause functions report intermediate values in the Trace Window.

Units Enhancements: User-defined default units, temperature and scaling functional units, and other new built-in units.

Explicit Calculation: Values substituted in calculations without reducing them numerically to report on replacements in calculations.

Metadata: File comments included with provenance, provenance on references, and results.

Function Signatures: Units and types accepted by a function are visible when evaluating the function name.

Math Function Changes and Improvements: Faster, more flexible linear algebra functions.

New algorithm for genfit and easier entry of model functions.

1 x 1 matrices can be entered in the Insert Matrix Dialog box.

Compatibility switches to control interpretation of some Mathcad constructs.

UI Improvements: Long area names.

Custom characters toolbar.

Reassignment of referenced worksheets from the region.

Distinction between vector and literal subscripts when editing.

Unit-specific unit error messages.

Save as HTML/Web Page: Mathcad no longer reads files it saved as HTML documents.

Return to the Table of Contents

2. Installation Information System Requirements Hardware Requirements Pentium-compatible 32-bit (x86) or 64-bit (x86-64, EM64T) processor - 400 MHz or higher; 700+ MHz recommended.

256 MB of RAM; 512 MB or more recommended.

550 MB of hard disk space (250 MB for Mathcad, 100 MB for prerequisites, and 200 MB for temporary space during installation).

CD or DVD drive (for CD installation only).

SVGA or higher graphics card and monitor.

Mouse or compatible pointing device.

Software Requirements Windows 2000 SP4, Windows XP SP2 or later.

Microsoft .NET Framework® 2.0*

MSXML 4.0 SP2 or later*

Microsoft Data Access Components 2.6 or later*

Internet Explorer 6.0* §

Adobe Acrobat Reader 7.0*

* Software can be installed automatically during the Mathcad installation.

§ Internet Explorer 6.0 or later is required for full functionality of the Help system, accessing HTML content within the Resources window, the opening and saving of Web-based files, and automatic product licensing. You do not need to make Internet Explorer your default browser to utilize this functionality.

2.2 Contents of the Mathcad Installation CD The Mathcad CD contains the following:

The installation program for Mathcad, which includes Help, the Developer's Reference, the Author's Reference, Tutorials and Migration Guide, QuickSheets, Reference Tables, and PDF files of the Mathcad User's Guide, the Administrator's Guide for network administrators, and the Customer Service Guide for Mathcad users.

The installation program for FLEXnet 10.8, for serving Mathcad Enterprise licenses.

The installation program for Microsoft Internet Explorer 7.

The installation program for Adobe Acrobat Reader 7.

Return to the Table of Contents

Installation of Mathcad You may install Mathcad 14 on the same system as Mathcad 11, Mathcad 12, or Mathcad 13. However, you must install and repair the versions you run in release order, starting with Mathcad 11. Apply any patches or updates for a particular release before proceeding to the next release.

Before you install Mathcad 14 on a system alongside an earlier version of Mathcad, read the section titled Side-by-Side Installation Issues.

Before Upgrading If you are upgrading to Mathcad 14 from an earlier version, be sure to have one of the following:

Serial number of your earlier Mathcad version.

The original installation media (CD).

Mathcad installed on a local drive.

The upgrade installation attempts to locate an earlier version on your system. If it fails to detect an earlier version, it prompts you to enter the serial number or insert the installation media. The Mathcad 14 installer does not require that you remove any detected previous versions, although only Mathcad 11 and later have been tested and certified to work alongside a Mathcad 14 installation.

General Installation Instructions Insert the CD into your CD-ROM drive. The CD automatically starts the installation program. If the installation program does not start automatically, you can start it by choosing Run from the Start menu and typing D:\SETUP (where D is your CD-ROM drive). Click "OK."

Click the Mathcad icon on the main installation screen.

When prompted, enter your product code, which is located on the back of the CD envelope.

Follow the remaining on-screen instructions.

Additional Installation Information for Beta Users If you participated in the Mathcad 14 Beta Program, you must uninstall the beta version of Mathcad 14 before you install the released version.

To Uninstall a Beta Version of Mathcad Use Add or Remove Programs in the Control Panel to remove the Mathcad 14 Beta software.

If you have previous versions of Mathcad installed, you must repair them after you uninstall Mathcad 14:

Open Windows Control Panel

Select Add/Remove Programs

Select the earliest version of Mathcad, then click "Change"

Select "Repair" then click "OK."

Repeat steps 3 and 4 for each remaining version of Mathcad, in release order.

After you uninstall the Mathcad 14 Beta software and repair any previous installed version, install Mathcad 14.

Troubleshooting Unexpected Behavior If you are experiencing unexpected behavior with Mathcad, such as getting error messages when you shouldn't or internal errors, the following steps may correct your problem:

Make sure no other versions of Mathcad except Mathcad 11, 12, and/or 13 are installed on your system.

Disable virus checking before installing Mathcad. Both Norton and McAfee anti-virus software as well as other products may cause problems on install.

Do not run Norton CrashGuard together with Mathcad, since it can misinterpret normal program operations as crashes.

Update your installed video and other device drivers. Updated versions are usually available on the Web site of your computer manufacturer or device vendor. Many users have corrected errors by simply updating their drivers.

With these steps, you can avoid many common problems in your use of Mathcad. If you encounter any errors after taking these steps, please contact Technical Support with the details and sample Mathcad files, so that they may investigate the problem further.

Return to the Table of Contents

Side-by-side Installation Issues You can install and run Mathcad 14 alongside Mathcad 13, Mathcad 12, and/or Mathcad 11, to ease conversion from old worksheets to new. The versions must be installed in order, from oldest to newest; failure to do so may cause problems using components. You can copy and paste regions from an older version into a newer version (for example, from Mathcad 11 into Mathcad 14), however pasting from a newer version to an older version is not supported and may crash the older product. When multiple versions of Mathcad are installed, the automation interface will only work on the most recent version of Mathcad. This may cause controls that invoke automation to stop working in older versions of Mathcad.

Return to the Table of Contents

3. Known Limitations The following table is a list of known limitations of Mathcad 14, as of 11/30/2006:

Bug Number Description 050705-170520; 050811-122128; 050826-215713 The use of out-of-date display drivers or full hardware acceleration may cause errors, redraw problems, or crashes.

Workaround: update your display driver or reduce hardware acceleration. 050216-095445 Double-clicking a Mathcad file returns a "file not found" error if Mathcad cannot find a license server. 051017-094423 Older Intel and AMD systems may fail to calculate numerics functions based on the new Intel MKL matrix libraries. For more information on which chips are supported, check the Intel Math Kernel Library documentation available on the Intel Web site. 031022-105127c The coordinate transformation functions sph2xyz() and cyl2xyz() cannot be used with CreateMesh() and CreateSpace() to produce the same result as a 3D plot.

Workaround: create a function with arguments (f(u,v), u, v) that calls sph2xyz() or cyl2xyz() with arguments (u, v, f(u,v)), to use as the mapping function for CreateMesh() or CreateSpace(). 050801-075734 Memory leaks on recalculation due to a limitation with .NET. 050816-103750 File Input Components pointing to non-existent files switch from relative to absolute paths. 051111-114044 The installer may not detect prerequisites properly on Windows 2000 systems. 051221-164409 The MATLAB component no longer supports the display of MATLAB plots, due to changes in MATLAB's Automation interface. 060511-143551 Symbolic definite integrals may calculate much slower than they did in previous versions of Mathcad. 060727-120201 [Ctrl] [Shift] k inserts special operators into math regions, but no longer inserts Greek characters.

Workaround: use [Ctrl] g to enter Greek characters. 060801-113111 An undefined variable defined in terms of 1*itself (for example: a:=1 * a) numerically evaluates to 0, rather than return an error. 060807-120235 Operators used in a variable name can no longer be used in evaluations; they instead return the error, "This variable is undefined." 061003-101635 Greek letters in text regions saved to previous versions may display as ? or Roman characters in those versions. 040809-104837 Copying text that contains a hyperlink from one text region to and pasting it into another text region does not copy the hyperlink.

Workaround: copy the entire region. 041024-133017 Copying from Mathcad into Microsoft Word as a Mathcad Document Object can cause the object to zoom in when activated (double-clicked), then deactivated.

Workaround: close Mathcad before you paste the object into Word. 050901-120228 WRITEPRN() goes into an infinite loop when writing multiply nested matrices. 060406-101521 Cannot use a hyperlink to navigate to a region in an area if the area is collapsed when the file is opened. 060725-103347 hhmmss() does not evaluate properly under non-US regional settings. 050404-161038 Importing large (>1 MB) data files is slower than Mathcad 11. 050201-170345 The Data Import Wizard incorrectly reads a number with a non-comma thousands separator as a string. 050516-162748 Values containing affine units return the error "This value must be a scalar" when pasted into the placeholder on the left-hand side of an expression.

Workaround: insert a postfix operator, and separately paste the unit into the right placeholder and the value into the left. 050727-153102 csort() incorrectly sorts arrays containing NaN. 050729-174421 CreateMesh() does not accept as a parameter any function that returns a dimensioned result. 050801-184858 Decimal numbers that cannot be represented exactly as floating point numbers are rounded in an unanticipated way (such as down, rather than up). 050803-163623 Adding a large scatter plot to an existing 3D graph may cause Mathcad to crash.

Workaround: add a small dummy data set as the second curve, convert the curve to a scatter plot, then replace the dummy data set with the actual data set. 050822-171500 Components treat single-element matrices as scalar values. 051014-101238 The result disappears when you disable evaluation of a region. 051122-104805 Bitmaps may display improperly when using Remote desktop to access a Windows 2000 Server installation. 060217-123210 Multiplication that formerly returned zero now returns an error. Mathcad 2000 and later evaluate all terms, rather than return zero if the first term evaluates to zero, which may cause errors when none appeared before.

Workaround: if you know that one term reaches zero, define the function accordingly, using the 'if' programming operator. 050705-171729 Cannot redefine ORIGIN within a program. 060502-153845 Mathcad won't install on Windows XP Professional 64 when connecting via Remote Terminal Server. The installer will fail to register all the necessary DLLs.

Workaround: run the install on the Windows XP Professional 64 workstation directly, rather than via Remote Terminal Server. 050616-130347 A second, concurrent instance of Mathcad opened after the first has auto-saved a worksheet may attempt to recover worksheets still open in the older instance. 050708-141936 Closing Mathcad while debugging with Visual Studio 6 returns an "Invalid Handle" error. 060307-123707 The dialog warning you that a file is being opened read-only sometimes fails to appear in front of other windows. 060425-150310 Radio buttons do not evaluate properly the first time you manually calculate a worksheet.

Workaround: calculate the worksheet twice. 050427-200917 Mathcad may return a "Parameter is Incorrect" error when opening offline files. 051111-175445 Web controls will not print on some printers.

Workaround: scroll to the bottom of the worksheet (or press [CTRL] [End]) before you print. 060912-213659 Symbolic Laplace transforms return an error in the German version of Mathcad.

Workaround: specify a different independent variable, such as t1, for the transformed function, as follows: f(s) -> Laplace, s, t1. 040628-131456 Data Import Wizard cannot read Excel files with more than 16384 rows. 060511-101050 Clicking "Replace All" does not replace all occurrences when cursor is in the middle of the document.

Workaround: move the cursor to the top of the worksheet before selecting Edit > Replace. 060808-105138 Clicking "Help" from the Insert Function dialog disables the "Insert" button after Help is closed.

Workaround: click back in the active worksheet. 040528-134919 Opening and closing areas may move boundaries and contained regions slightly. 040824-131642 A complex scalar written to a data file by WRITEPRN() is read in as a two-element array by READPRN(). 041214-093929 Large arrays (>8 million elements, or 64 MB) may cause memory errors due to a limitation in .NET. 041214-165738 Solve blocks may attempt to converge indefinitely, rather than return an error, when they fail to converge. When returned, convergence errors may provide inadequate information for debugging. 050506-104329 READRGB() and the Picture Operator don't work with the newest digital camera JPEG format, which retains information about camera settings.

Workaround: open the file in another image editor, such as Paint or Windows Picture Viewer, and resave it before reading it into Mathcad. 050405-162927 Matrices containing large nested arrays display slowly. 050707-091516 UnitsOf() returns incorrect answers in SI-based Unit Systems when the base units are not SI units. 050728-141332 min() and sec() are not recognized in font styles other than Variables or Constants. 050805-161210 Sliders flicker when adjusted. 050831-084253 Borrowed licenses may not be returned properly from within Mathcad.

Workaround: Connect the borrowing machine to the network, so that the server can find it.

On the server, open a command prompt and type:

lmborrow -return [-c license_file] [-c display] feature license_file = the name of the license file.

display = the name of the borrow system, or in the case of a terminal server environment, the terminal server client name; required only if the system name has changed since borrowing the license.

feature = the name of the borrowed feature. For a list of borrowed features, run lmborrow -status at a command prompt.

060130-104032 Error highlighting, error messages and Trace Error may be confusing in solve blocks. You may be able to trace the real error if you: Right-click the region with the error.

Select Trace Error.

Click "Close". (None of the buttons except "Close" will be available.)

The cursor will often jump to the variable that is in error. 060807-130950 Zero-width joiner/non-joiner UNICODE characters do not work in math regions. 060901-121829 The single-line construct of a definition, followed by a symbolic evaluation, followed by a numeric evaluation is not supported, although you can type it in. 050706-093218 The "Display Dimensions" settings, located on the Dimensions tab of the Worksheet Options dialog are not saved to XMCD/XMCDZ files.

Workaround: save the file as Mathcad 11 or Mathcad 12 MCD. 050725-100814 The following names are reserved by Mathcad and cannot be defined by users: Find, format, genfit, if, Maximize, Minerr, Minimize, numol, Odefind, Odesolve, pause, Pdesolve, polyroots, trace, until. 060316-153817 Redefinition Warning tips don't appear until the second time you click on a region. 060601-092646 After using a Web control, you must make two mouse-clicks before keyboard entry has an effect. 050525-104331 The Mathcad 12 file format does not support multiple-algorithm functions [genfit(), odesolve(), pdesolve(), polyroots(), Find(), Minerr(), Maximize(), Minimize()] used as anything other than a function name. Saving such a file as a Mathcad 12 XMCD/XMCDZ worksheet returns a schema error. 050203-113939 When opening worksheets containing overlapping or nested collapsed areas, Mathcad displays the alert "Warning: an unrecoverable read error has occurred. <N> regions could not be read from this document.", reports a runtime error, and closes.

Workaround: open the document in a previous version of Mathcad and remove the problem areas, or rearrange them so that they no longer overlap or nest. 050815-164314 Functions evaluated with less than the defined number of arguments return the function's signature in graphs, rather than an error message indicating the missing argument. Return to the Table of Contents

4. Problems Fixed Problems Fixed in Mathcad 14 Bug Number Description 060920-130930 When opening a worksheet containing a large array, the matrix appears distorted and you cannot save the file. 060613-130244 Mathcad files with custom unit systems do not always recalculate properly and may not save as valid XMCD files. 051228-154632 Calls to Minimize() and Maximize() with invalid parameters cause Mathcad to stop computing even after you disable or correct the region. 051227-160700 Dragging or nudging area boundaries can lead to nested or interleaved areas. 051208-150942 Mathcad does not launch on a system set to the Turkish locale. 051102-074532 Mathcad does not report an error when saving an XMCD worksheet fails due to insufficient space. 050816-120902 Adding parentheses in a math region embedded in a text region causes an internal error and crashes Mathcad. 061115-103350 Adding Angle to the custom units, using the Unit System tab of the Worksheet Options dialog, results in an internal error. 060719-163859 Φ() gives different results for 0 in the numeric and symbolic processors. Φ(0) now returns 0.5 in both cases. 060424-111903 xy2pol() returns results between -180 to 180 in Mathcad 12 & 13. Mathcad 14 has reverted to the Mathcad 11 behavior of returning 0 to 360. 060411-155320 J1(1) and I1(1) are reversed when evaluated symbolically. 060316-112455 Using the Automation API to create RTF files saves HTML files instead. 060123-101738 Performing a symbolic solve with inequalities gives incorrect results. 060106-112616 Cannot substitute a variable for a function or expression using menu symbolics.

Note: This fix requires that you use programming operators to create a program defining the function as the variable and returning the function name, copy the program to the clipboard, select the function name to substitute for, and click Symbolics > Variable > Substitute. 060104-095626 The built-in constant "%" is not recognized by the symbolic engine. 051019-103914 linterp() does not accept complex arrays for the second argument. 050812-095804 Explicit evaluation of negative purely imaginary numbers displays zero for the real part. 050729-131750 Context menu options to hide portions of symbolic expressions do not work properly when no symbolic keyword is present. 050726-102139 If you take the definite integral of an expression with respect to a variable x, and the expression contains a different variable, A, defined as x, Mathcad does not recognize A as the variable of integration. 050712-140909 You must press [F9] twice to fully calculate a worksheet after editing it. 050406-154223 Mathcad performs symbolic evaluations even when Automatic Calculation is turned off. 050308-143751 WRITEPRN() writes out incorrect data for NaN and infinity, which READPRN() reads in incorrectly. 050215-103351 Cannot multiply nested matrices by a scalar.

Note: Implicit vectorization of functions and operators does not work on nested matrices. 041208-100038 Mathcad returns "Parameter is incorrect" error when opening or saving files on network partitions. 040818-121539 Replace and Find do not find text in collapsed areas. 031219-100337 A matrix created using matrix() cannot be evaluated symbolically. 030319-140047 Vectorization does not work in symbolic calculations. 051102-100456 Symbolic expressions that return "No Symbolic Result Found" do not remove previously calculated results. 050721-152745 Worksheet protection is not available in XMCD worksheets.

Note: Worksheet protection can now be enabled in XMCD worksheets; however, once enabled, worksheets can only be saved in the XMCDZ format. 040615-163146 Symbolic solver gives incorrect results when using inequalities. 051005-125434 Search defaults to text regions only, rather than both math and text regions. 050722-150256 Large data tables give no indication that they contain more cells.

Note: the last displayed cell of a data table now appears as "...". Problems Fixed in Mathcad 13.1 Bug Number Description 051220-150519 Mathcad crashes when saving a file with a collapsed area containing a math region embedded in a text region. 051102-095205 Saving a worksheet containing a text region with an embedded evaluation as an XMCD file crashes Mathcad. 051003-152935 Deleting an empty placeholder quits Mathcad. 050810-150131 Files containing regions with Optimization enabled may cause crashes or hang Mathcad when opened. 031014-152054 Can created nested areas in worksheets. 060207-135921 Mathcad does not save a worksheet's page orientation (File > Page Setup). 051222-103419 Cannot use the column operator to assign a scalar to an array column. 051124-170432 Legend is placed behind grid lines in 2D plots. 051123-113709 The constrained parameter must be listed last in the vector argument of Odesolve(). 051122-124920 Symbolic Derivation of J0(x-1) fails. 051118-104303 The "Show exponents in engineering format" setting (in the Result Format dialog is not saved in the worksheet. 051117-155555 Pasting a number into Mathcad causes a COM error. 051117-101307 Decreasing axis limits are labeled incorrectly on logarithmically scaled XY graphs. 051031-131243 Odesolve() occasionally returns type mismatch errors. 051020-124856 Using Odesolve() to solve for variables with literal subscripts returns the error "The expression to the left of the equal sign cannot be defined." 051018-133102 str2vec() produces an empty vector for empty strings, and causes an error when saving to an XMCD file. 050914-175018 Odesolve() returns an error when referencing a function defined outside the solve block. 050908-113239 Automation command GetValue converts decimal numbers to strings (with commas) on non-US operating systems. 050906-121941 Using return to assign a vector to an element of a vector returns an error. 050904-093012 Repairing a silent installation of Mathcad clears FLEXlm server information. 050901-114746 Nested arrays do not transpose correctly. 050808-140321 File corruption errors refer to incorrect line numbers. 050803-143816 Solve blocks that work in Mathcad 12 return the error "Found a number with a magnitude greater than 10^307 while trying to evaluate this expression". 050708-153644 polyroots() calculations using the LaGuerre method are slower than in Mathcad 11. 050602-101501 Solve blocks with dimensioned guess values of 0 do not return units properly. 050401-165812 Document properties in templates do not carry to documents created from the template (author excepted). 050315-124031; 041217-160936 Files with references (especially deeply nested references) take longer to open than in Mathcad 11. Note: files should open more quickly, but recalculation may still be slow. 050218-155416 Mathcad begins to calculate equations before you exit them. 050110-143821 Vectorization operator only supports only 10 function arguments. 050107-105411 Mathcad cannot read CSV files containing more than 20,000 characters or 1,000 columns of data. 041201-182104 vlookup() calculations take twice as long as in Mathcad 11. 040825-101926 The MATLAB component does not work with MATLAB 7.

Note: there is a known issue regarding the MATLAB component displaying plots. 030922-103643; 050721-121126 Results with units appear confusing because the multiplication sign is hidden.

Note: you can now change the multiplication symbol between a number and its unit from the context menu. 021029-124923c The slider control does not print as it appears on the worksheet.

Note: when printed, only some properties are reflected - orientation, point (all 3 settings), tick marks, tick frequency, autoticks, width, and minimum and maximum values; the border and extended style properties have no effect on print rendering. 990829-155826-2 The required argument order for round() is reversed when evaluating it symbolically, rather than numerically. 051107-113430 Hankel functions are inaccurate for large m and small z. 050913-105200 Mathcad displays no style information for string constants. 050824-145736 H is not recognized as hexadecimal number suffix. 050812-142220 Energy per unit mass (J/kg) turns into dose by default. The unit for dose, Sv, can still be typed in the unit placeholder as needed. 050713-090831 DMS(), FIF(), and hhmmss() do not accept 3 arguments. 050605-235915 °C and °F do not insert properly from the Insert Units dialog. 050228-111342 The symbolic processor does not recognize rref(). 050105-132452 Error messages in program loops highlight the entire loop, rather than the source of the error. 041109-104300 Odesolve incorrectly returns the error "This must be a scalar" instead of "Too few initial conditions." 031204-095201 Cannot turn off implicit multiplication. Return to the Table of Contents

Problems Fixed in Mathcad 13 Bug Number Description 050811-122102 Returning a borrowed license hangs or crashes Mathcad. 050615-163310 Copying and pasting part of an equation, or deleting an empty placeholder, crashes Mathcad with fatal error. 050329-155829 Mathcad returns the error "The instruction at '<memory address>' referenced memory at "'<memory address>' The memory could not be 'read' Click on "OK" to terminate the program. 050317-163144 Defining a global variable equal to itself crashes Mathcad with an unhandled exception error. 041020-120253 Error and crash when opening the resources: "Failed to load resources from resource file. Please check your setup." 031009-122431 Setting zoom to 200% on a worksheet with a listbox makes the worksheet flicker. 050812-161207 Functions defined as the output of Find() cannot be evaluated symbolically. 050630-151107 Symbolic transpose operations return the error "No symbolic result found." 050616-130717 Mathcad does not recognize arguments using the array column operator as part of a series of values specifying the range of a 'for' loop. 050613-155749 Copying a region from a locked area makes the locked region editable. 050601-085852 'break' and 'continue' do not work outside of 'for' and 'while' loops. 050518-090145 Dotted selection rectangle disappears after multi-region drag and drop. 050513-160301 logpts() occasionally decreases between decades. 050429-204810 hist() does not create the proper number of bins. 050330-102054 Mathcad crashes while inverting large matrices. 050321-131409 Use of the vectorize operator with the augment function returns an error message. 050315-124031c Extra Mathcad icons appear on the taskbar when opening files that contain references to files containing listboxes. 050315-092452 Scripted Objects resize automatically when activated. 050224-160839 XMCD worksheets that contain a local assignment to a function within an infix operator do not open. 050224-124757 The symbolic processor cannot recognize a matrix defined with a variable in the subscript. 050210-162908 "Print Single Page Width" setting is not saved in XMCD or XMCDZ files. 041022-131432 The type checking functions IsScalar(), IsArray(), and IsString() do not accept function names as arguments. 040910-090552 Mathcad saves files with schema errors, preventing them from opening afterward. 040907-101840 Multiplied fractions may yield incorrect results. 040819-153337 Cannot assign solve block that returns variables of differing units to a function. 040618-123742 Graphs do not animate properly if the FRAME variable is in a collapsed area. 050301-154333 End-of-document is interpreted as the top of the last region, not the bottom of the lowest-extending region. 041129-094510 Log-scale quickplots do not use logarithmically spaced axes. Return to the Table of Contents

5. Additional Mathcad Help Mathcad Documentation Be sure to check the Developer's Reference and the Author's Reference. You can access them from the Help menu in Mathcad.

The Developer's Reference is for advanced Mathcad users. It provides information on customizing components using scripting, using the Scriptable Object component, building components in C++, and using Mathcad as an Automation server.

The Author's Reference contains instructions and tips for creating Mathcad E-books and information about how to create HTML versions of Mathcad worksheets.

In addition, your Mathcad installation includes tutorials, sample worksheets, and reference tables to help you get the most out of Mathcad. Select Tutorials, QuickSheets, or Reference Tables from either the Help menu or the Resources toolbar.

Technical Support Visit the Mathsoft Support Web site at http://www.ptc.com/go/mathsoft/support/.

Online Information The Mathcad Web site at http://www.ptc.com/go/mathsoft/mathcad/ offers several features for all Mathcad users.

Go to the Download area to get:

Updates to Mathcad that add capabilities to your existing version.

Add-ins that allow you to access Mathcad functionality from within other programs like Excel.

Mathcad E-books like Inside Mathcad: Programming, Differential Equation Solving, and Inside Mathcad: Solving

You must register your software in order to gain access to the Mathcad download area.

Go to the Technical Support area, http://www.ptc.com/go/mathsoft/support/, to access the Mathcad Knowledge Base, a database containing tips, techniques, troubleshooting information, and sample files.

The Mathcad Web Resources, http://www.ptc.com/go/mathsoft/mathcad_resources/, contains Mathcad E-books, user-contributed files, sample graphs and animations made in Mathcad, as well as listings and links to print books using Mathcad.

Mathcad User Forums provide a free Internet area for sharing ideas and files with other Mathcad users, accessible from within Mathcad. Choose User Forums from the Help menu or, in the Resources window or a browser, go directly to http://www.ptc.com/go/mathsoft/collab/.

Functions that Work with the Symbolic Processor The following built-in Mathcad functions can be evaluated with the symbolic equal sign:

Bessel Functions Special Functions Truncation and Rounding Functions Statistics Functions Vector and Matrix Functions Trigonometric, Log, and Exponential Functions Complex Number Functions Differential Equation Functions Lookup Functions Piecewise Condition Functions Solving and Optimization Functions Sorting Functions Bessel Functions J0 J1 Jn js Y0 Y1 Yn ys I0 I1 In K0 K1 Kn H0 H1 Hn Ai DAi Bi DBi Special Functions erf erfc Γ   Truncation and Rounding Functions ceil Ceil floor Floor round Round trunc Trunc Statistics Functions gcd lcm mod   Vector and Matrix Functions augment cholesky cols diag eigenvals eigenvecs geninv identity last length matrix max min rank rows rref stack submatrix svd svd2 svds tr Trigonometric, Log, and Exponential Functions acos acosh acot acoth acsc acsch asec asech asin asinh atan atan2 atanh cos cosh cot coth csc csch exp ln ln0 log sec sech sin sinc sinh tan tanh Complex Number Functions arg csgn Im Re sign signum Differential Equation Functions Jacob       Lookup Functions hlookup lookup match vlookup Piecewise Condition Functions if δ Φ   Solving and Optimization Functions Find lsolve Minerr root Sorting Functions csort reverse rsort sort Return to the Table of Contents

11/30/2006

Copyright © 2007 Parametric Technology Corporation. All Rights Reserved.

User and training documentation from Parametric Technology Corporation and its subsidiary companies (collectively "PTC") is subject to the copyright laws of the United States and other countries and is provided under a license agreement that restricts copying, disclosure, and use of such documentation. PTC hereby grants to the licensed user the right to make copies in printed form of this documentation if provided on software media, but only for internal/personal use and in accordance with the license agreement under which the applicable software is licensed. Any copy made shall include the PTC copyright notice and any other proprietary notice provided by PTC. This documentation may not be disclosed, transferred, modified, or reduced to any form, including electronic media, or transmitted or made publicly available by any means without the prior written consent of PTC and no authorization is granted to make copies for such purposes.

Information described herein is furnished for general information only, is subject to change without notice, and should not be construed as a warranty or commitment by PTC. PTC assumes no responsibility or liability for any errors or inaccuracies that may appear in this document.

The software described in this document is provided under written license agreement, contains valuable trade secrets and proprietary information, and is protected by the copyright laws of the United States and other countries. It may not be copied or distributed in any form or medium, disclosed to third parties, or used in any manner not provided for in the software licenses agreement except with written prior approval from PTC.

UNAUTHORIZED USE OF SOFTWARE OR ITS DOCUMENTATION CAN RESULT IN CIVIL DAMAGES AND CRIMINAL PROSECUTION.

Important Copyright, Trademark, Patent, and Licensing Information

On the Reference Documents page at http://www.ptc.com/appserver/cs/doc/refdoc.jsp, select Legal for the product and PTC Copyright for the document type. Alternatively, click Help > About on your product's main menu.

UNITED STATES GOVERNMENT RESTRICTED RIGHTS LEGEND

This document and the software described herein are Commercial Computer Documentation and Software, pursuant to FAR 12.212(a)-(b) (OCT'95) or DFARS 227.7202-1(a) and 227.7202-3(a) (JUN'95), and are provided to the US Government under a limited commercial license only. For procurements predating the above clauses, use, duplication, or disclosure by the Government is subject to the restrictions set forth in subparagraph (c)(1)(ii) of the Rights in Technical Data and Computer Software Clause at DFARS 252.227 7013 (OCT'88) or Commercial Computer Software-Restricted Rights at FAR 52.227 19(c)(1)-(2) (JUN'87), as applicable. 00002007

Parametric Technology Corporation, 140 Kendrick Street, Needham, MA 02494 USA

Return to the Table of Contents