finding specific values in a function
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So i have a function f(x) and it is basically a curve. I am trying to find the point on in then the curve is at its minimum. To find the y coordinate i just used min(f(x)). My question is how do I find the x value that corresponds to that. x is a vector of about 100 terms if that makes a difference. The function is kind of long and complicated or else I would just solve for x. Is there a command that will give me that matching x value to the y minimum? Thank You.
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Walter Roberson
2011 年 9 月 16 日
[y, yidx] = min(f(x));
Then x(yidx) is the x that evaluates to the minimum.
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