finding lower and upper limit of a function

x = -10:0.1:10;

f1 = trapmf(x,[-2 0 0 2]);

if i plot(x,f1), this will give me a triangular wave.

I need to seperate the f1 values into two sections, one left of the peak and one right of the peak.

What's the best way of doing this? an If statement?

Answer 1

[Jan]

[maxValue, maxIndex] = max(f1);

First part: 1:maxIndex , second part: maxIndex+1:length(x)