If your function has additional parameters, for example k in myfun:

%------------------------------%

function z = myfun(x,y,k1,k2,k3)

z = x.*(y.^k1)./(x.^k2 + y.^k3);

%------------------------------%

then you may use an anonymous function to specify that parameter:

ezsurf(@(x,y)myfun(x,y,2,2,4))

See also ezplot, ezplot3, ezpolar, ezcontour, ezcontourf, ezmesh,

ezsurfc, ezmeshc, surf, vectorize, function_handle.

Overloaded methods:

sym/ezsurf

Reference page in Help browser

doc ezsurf

<ezsurfc> - Easy to use combination surf/contour plotter.

EZSURFC Easy to use combination surf/contour plotter.

EZSURFC(FUN) plots a graph of the function FUN(X,Y) using SURFC. FUN is

plotted over the default domain -2*PI < X < 2*PI, -2*PI < Y < 2*PI.

EZSURFC(FUN,DOMAIN) plots FUN over the specified DOMAIN instead of the

default domain. DOMAIN can be the vector [XMIN,XMAX,YMIN,YMAX] or the

[A,B] (to plot over A < X < B, A < Y < B).

EZSURFC(FUNX,FUNY,FUNZ) plots the parametric surface FUNX(S,T),

FUNY(S,T), and FUNZ(S,T) over the square -2*PI < S < 2*PI and

-2*PI < T < 2*PI.

EZSURFC(FUNX,FUNY,FUNZ,[SMIN,SMAX,TMIN,TMAX]) or

EZSURFC(FUNX,FUNY,FUNZ,[A,B]) uses the specified domain.

EZSURFC(...,N) plots FUN over the default domain using an N-by-N grid.

The default value for N is 60.

EZSURFC(...,'circ') plots FUN over a disk centered on the domain.

EZSURFC(AX,...) plots into AX instead of GCA.

H = EZSURFC(...) returns handles to the plotted object in H.

Examples:

The easiest way to express a function is via a string:

ezsurfc('x*exp(-x^2 - y^2)')

One programming technique is to vectorize the string expression using

the array operators .* (TIMES), ./ (RDIVIDE), .\ (LDIVIDE), .^ (POWER).

This makes the algorithm more efficient since it can perform multiple

function evaluations at once.

ezsurfc('x.*exp(-x.^2 - y.^2)')

You may also use a function handle to an existing function. Function

handles are more powerful and efficient than string expressions.

ezsurfc(@peaks)

EZSURFC plots the variables in string expressions alphabetically.

subplot(1,2,1), ezsurfc('u.*(v.^2)./(u.^2 + v.^4)')

To avoid this ambiguity, specify the order with an anonymous function:

subplot(1,2,2), ezsurfc(@(v,u)u.*(v.^2)./(u.^2 + v.^4))

If your function has additional parameters, for example k in myfun:

%------------------------------%

function z = myfun(x,y,k1,k2,k3)

z = x.*(y.^k1)./(x.^k2 + y.^k3);

%------------------------------%

then you may use an anonymous function to specify that parameter:

ezsurfc(@(x,y)myfun(x,y,2,2,4))

See also ezplot, ezplot3, ezpolar, ezcontour, ezcontourf, ezmesh,

ezsurf, ezmeshc, surfc, vectorize, function_handle.

Overloaded methods:

sym/ezsurfc

Reference page in Help browser

doc ezsurfc

<meshc> - Combination mesh/contour plot.

MESHC Combination mesh/contour plot.

MESHC(...) is the same as MESH(...) except that a contour plot