Blue color represents Integrator for an invertor amplifier :
For DC : V.out = -(R2/R1)
For AC : V.out = -1/(R1*C1) * integral( V.in)
Green color represents Differentiator for an inverting amplifier :
For DC : V.out = 0 ^^"
For AC : V.out = -(C1*R2)*(V.in)'
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(V.in)' = d(V.in)/dt ,,, derevative of the input signal
