Using surf with two-dimensional function handle argument

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jbolin
jbolin 2018-2-13
回答： Walter Roberson 2018-2-13
How might I use meshgrid and surf to plot a surface of a two-dimensional function handle?
So instead of f(x1,x2), f(x) when x=[x1 x2]
f =@(x1,x2) x1.^2 + x2.^2;
t = linspace(-10,10,20);
[xx,yy] = meshgrid(t,t);
surf(xx,yy,f(xx,yy))

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Walter Roberson
Walter Roberson 2018-2-13
f =@(x) x(1).^2 + x(2).^2;
t = linspace(-10,10,20);
[xx,yy] = meshgrid(t,t);
surf(xx,yy,arrayfun(@(x,y)f([x,y]),xx,yy))

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