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I . Follow the link above and watch the video.

II. True or False?

The video says that…

1) … computers are now widespread and taken by us for granted;

2) … without software engineers we’d be looking at empty screens;

3) … most of the software engineers are driven for work by their earnings;

4) … software to a computer is just like programs for TV;

5) software engineers create the framework for code writers;

6) … software engineers write tiny steps that make up a program;

7) … software engineers sometimes have to work in the evenings and during the week-ends;

8) … a strong grasp of Mathematics is very essential for software engineers;

9) … old-fashioned communication skills are no longer needed for software engineers;

10) … software engineers must meet the needs of today’s users and predict the needs of users of tomorrow.

III. Describe the range of responsibilities of a software engineer, using information from the video.

Summary Writing

Text C. Mathematical Software

by Steve Mayer

On this page I’m not going to mention the heavyweights like Maple, Mathcad, Mathematica, or Scientific Workplace which cost hundreds of pounds to buy, but I will concentrate on cheaper software that you or I can afford.

1. Lotus Word Pro (part of SmartSuite). What’s a word processor doing here? Well mathematicians may have had a lot to do with the development of computers but the one thing computers seem to do badly is writing mathematics. HTML is even worse, even putting π here means using an image. If you’ve used the equation editor in Word you may well have given it up. But there’s a much better alternative and that’s Word Pro. You will find this equation editor very easy to use and, it allows you to easily mix text and mathematics. Much of the math can be entered using the keyboard only. The best news is that you can get it for free as it has been given away, unrestricted, by magazines such as PC Plus or PC Pro.

2. Scientific Notebook. This is the little brother of Scientific Workplace. If you’ve ever wanted to type mathematics easily then this is the software for you. The ease of typing has got to be tried to be believed. And that’s not all. It will actually calculate the mathematics as well. If you want to factorize large numbers, differentiate algebraically, draw graphs, solve equations, etc then Scientific Notebook will do it. As you can see I’m a real fan especially as it is a lot cheaper than most systems. You can download a free Scientific Notebook viewer through this link – http://www.sciword.demon.co.uk/viewer.htm.

3. Postscript Viewer. A lot of mathematics is published in postscript format which is meant for postscript printers. Most of us haven’t got one of these so you’ll need a viewer instead. You can use Ghostscript, which is free. An alternative is the shareware RoPS which you can try for 21 days before payment.

4. Pi Calculator This is a small program written by Keith Maune, complete with Visual Basic source code, which will calculate π to any number of decimal places that you specify.

5. Winplot is a general-purpose plotting utility, which can draw (and animate) curves and surfaces presented in a variety of formats. It’s free and can be found at http://peanut.8m.net/.

6. The Geometer’s Sketchpad. Want to draw all those geometry diagrams that prove some result about triangles and circles? Then you should try The Geometer’s Sketchpad. It describes itself as “Geometry software for Euclidean, coordinate, transformational, analytic, and fractal geometry”. There’s a free demo to try out.

7. Mathcad Explorer. Mathcad itself may be expensive but you can get free read-only version of Mathcad for browsing live mathematical documents on your computer, your network, or the Web. Mathcad is very popular amongst engineers who use mathematics. You’ll find it at The MathSoft Web Store or Mathcad Explorer: Adept Scientific

8. Winarc. This would be better named as Wingames. It’s another free software from Peanut Software and features the sort of games that appeal to and have been analyzed by mathematicians, such as Hex, Life and Rubik’s Cube.

9. Winstats. If you want a statistics program that will not only analyze your data but also run simulations to save you rolling dice or whatever then you should try Winstats at, guess where, Peanut Software. By now you will realize that this page is a source of a lot of good free mathematical software.

10. TkPaint. If you want to prepare high quality diagrams then this is the program to use. However, to maintain this quality it outputs in Encapsulated Postscript, so you’ll need to be able to deal with this type of file. This is a vector graphics program for drawing book quality figures, slide presentations, diagrams, and pictures. It can be very useful for book writers (who like to draw their figures), papers writers, lecturers who need to prepare good quality slides without having to learn too much technical details, struggle with monstrous programs, and spend too much money. The software is free from TKPAINT HOME PAGE

You can find a list of other software at Guide to Available Mathematical Software or at Mathematical Software Sources

(http://www.po28.dial.pipex.com/maths/software.htm)

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