How do i intergrate a signal (sinewave)?

Using "INT(sinewave)" gives the error "Undefined function or method 'int' for input arguments of type 'double'" i dont know what this means. How do i intergrate my sinewave. thanks dan.

Answer 1

[Honglei Chen]

int is the symbolic toolbox integration. There are many numerical integration methods in MATLAB, just pick one of them.

doc quad
doc quadl
doc integral

I'll use quad as an example. Let's say I want to integrate a sin function, which has a period of pi,

quad(@sin,0,pi)