Code to solve integral with cosine and theta

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How do I solve the following equation in Matlab?
∫(cos^2(θ))dθ with pi/2 as the max and 0 as the min.

Accepted Answer

Chunru
Chunru on 16 Jun 2021
  • integrate it manually
  • integrate it symbolically
syms x
f(x) = cos(x).^2
f(x) = 
int(f(x), 0, pi/2)
ans = 
  • integrate it numerically
x = linspace(0, pi/2, 101);
trapz(x, cos(x).^2)
ans = 0.7854

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