This simulation is a Square and Triangle Wave Generator using two operational amplifiers. The first op-amp is configured as a comparator with hysteresis (Schmitt trigger) to generate a square wave, while the second op-amp works as an integrator to produce a triangle wave. The square wave output (green) continuously charges and discharges the capacitor through the resistor network, resulting in the triangular waveform (blue). The frequency of oscillation depends on the resistor and capacitor valu

Harmonics - Square Wave