Subtract function from array

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Jaap
Jaap 2011-12-13
Hi, I have a list of x/y coordinates. Is there an easy way to subtract a function (y = f(x)) from all y data? Thanks a lot!
Jacob

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采纳的回答

Jan
Jan 2011-12-13
Isn't this trivial?
f = @cos;
x = linspace(0, 2*pi, 100);
y = sin(x);
y2 = y - f(x);
or any other function instead of cos as long as it replies a vector with the same dimensions as the input.

更多回答（2 个）

Jaap
Jaap 2011-12-13
I was curious whether there was something quick like find(y-(@(x))). Thanks anyway.
Walter Roberson
Walter Roberson 2012-1-16
arrayfun(@(x, y) y - f(x), x, y)

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