MATLAB: How do i find the function value for different values of xi &Yi; where f=function​(x,y);i=1,​2,……..​……n (n may be 15, 50 or 100)

Question

How do i find the function value for different values of xi & Yi; where f= function(x,y); i=1,2,…………..n (n may be 15, 50 or 100)?

Answer 1

If xi and Yi are both vectors of values, and you want to find the result at each pair of values xi(J), Yi(K), then

[XI, YI] = ndgrid(xi, Yi);
results = arrayfun(@f, XI, YI);