File: eval3d.cat

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scilab 2.6-4
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eval3d            Scilab Group            Scilab Function            eval3d
NAME
   eval3d - values of a function on a grid
  
CALLING SEQUENCE
 [z]=eval3d(fun,x,[y])
PARAMETERS
 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 doesn't accept arguments of type vector use the primitive
  feval.
  
EXAMPLE
   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
   feval
  
AUTHOR
   Steer S.