# How to find value of X when Y reaches maximum value

4 views (last 30 days)
RAHUL YADAV on 18 Aug 2020
Commented: RAHUL YADAV on 20 Aug 2020
Hello,
I am new to MATLAB Simulink, I want output as the value of X when Y reaches maximum.
Y is a calculated value from an equation and is a function of X
RAHUL YADAV on 19 Aug 2020
problem solved using Leonardo's approach

maiaL on 18 Aug 2020
Not sure what kind of output you want, but one way would be to get the derivative of your y(x) function. When it's "zero", it's at a maximum or minimum. I added quotes to "zero" because it's not going to be zero due to the time step of the solver. In the above example I'm getting the absolute of the derivative and when it's <= 0.01, I get the x value.
RAHUL YADAV on 20 Aug 2020
Thanks

Sara Boznik on 18 Aug 2020
RAHUL YADAV on 19 Aug 2020
Thanks..

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