how to write a user defined function that calculates the maximum or minimum of a quadratic equation of the form

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Tshering pem
Tshering pem 2019-11-1
回答： Ildeberto de los Santos Ruiz 2019-11-1
How can we write a user-definedfunction that calculates maximum and minimum of an quadratic equation.
since i know how to find max and min of an array only.
This question has been troubling me for days. If anyone could solve it

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回答（1 个）

Ildeberto de los Santos Ruiz
Try this:
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f = @(x) x^2-5*x+6;
initial = 0;
fminsearch(f,initial)
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To find a maximum, use -f instead of f.

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