- Given two vectors describing sequences of x and y values, e.g.
**x=[1:.1:10]****y=[-1: .01 : 1]**- the command
**[X,Y]=meshgrid(x,y)**- constructs two length(x) by length(y) matrices.
- The matrix X has the i'th value of vector x in its i'th column.
- The matrix Y has the j'th value of vector y in its j'th row.
- If the function f(x,y) is described in an m-file
*fcnname.m*, then **Z=fcnanme(X,Y)**- will compute an appropriate array of function values so that
**mesh(x,y,Z)**- gives a wireframe graph of f
**meshc(x,y,Z)**- gives a graph with contours drawn in the xy plane.
**surf(x,y,Z)**- gives a shaded surface representing this graph.

*Last Update: September 25, 2000*

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