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.TH eval3d 2 "April 1993" "Scilab Group" "Scilab Function"
.so ../sci.an
.SH NAME
eval3d - values of a function on a grid
.SH CALLING SEQUENCE
.nf
[z]=eval3d(fun,x,[y])
.fi
.SH PARAMETERS
.TP 15
fun
: function accepting vectors as arguments.
.TP
x,y
: 2 vectors of size (1,n1) and (1,n2). (default value for \fVy\fR : \fVy=x\fR).
.TP
z
: matrix of size (n1,n2).
.SH DESCRIPTION
This function returns a matrix \fVz(n1,n2)\fR. \fVz(i,j)=fun(x(i),y(j))\fR.
If the function \fVfun\fR doesn't accept arguments of type vector use the
primitive \fVfeval\fR.
.SH EXAMPLE
.nf
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);
.fi
.SH SEE ALSO
feval
.SH AUTHOR
Steer S.
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