I'm doing homework where i have to find a function representation of the output signal from a simple op amp integrator circuit with a 4.7k resistor and a .01uf capacitor. I know i'm supposed to use the equation -1/rc * int vin(t) but the input is a square wave signal. I never learned how to integrate that. Can i anyone help me out? Do i have to use something called a fourier series or fourier transform?