How can I get values for f in a matrix of dimension(100,1)?

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athi
athi 2017-9-18
回答： Jan 2017-9-18
for x=linspace(-1,1,10)
for y=linspace(-1,1,10)
f= (1-x).^2 +100*(y-x.^2).^2
end
end

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回答（2 个）

José-Luis
José-Luis 2017-9-18
编辑：José-Luis 2017-9-18
f =@(x,y) (1-x).^2 +100*(y-x.^2).^2;
dummy = linspace(-1,1,10);
[xx,yy] = ndgrid(dummy,dummy);
result = f(xx,yy);
result = result(:);
Alternatively:
result = bsxfun(f,dummy,dummy.');
result = result(:);
Jan
Jan 2017-9-18
Since R2016b with auto-expanding:
x = linspace(-1,1,10);
y = linspace(-1,1,10).';
f = (1-x).^2 + 100*(y - x.^2).^2;
f = f(:)

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