<< eval 6-0 frexp >>
removed >> removed > 6-0 > eval3d

eval3d

values of a function on a grid

Calling Sequence

z = eval3d(fun, x)
z = eval3d(fun, x, y)

Arguments

fun

function accepting vectors as arguments.

x,y

2 vectors of size (1,n1) and (1,n2). (default value for y : y=x).

z

matrix of size (n1,n2).

Description

This function returns a matrix z(n1,n2). z(i,j)=fun(x(i),y(j)). If the function fun does not accept arguments of type vector use the primitive feval.

Examples

x=-5:5;y=x;
deff('[z]=f(x,y)',['z= x.*y']);
z=eval3d(f,x,y);
plot3d(x,y,z);

deff('[z]=f(x,y)',['z= x*y']);
z=feval(x,y,f);
plot3d(x,y,z);

See Also

History

VersionDescription
6.0.0 eval3d() is declared obsolete. [X,Y]=ndgrid(x,y); Z=fun(X,Y); may replaces it.
6.1.0 eval3d() is no longer available.

<< eval 6-0 frexp >>