a question about microcap7.
i just want to plot the data
i used SDT(v(1)) integration on existing data
the result graph has right amp. & frequency
but it has ofset. How to remove this ofset?
The root function is v(1) =A.sin(kt),
SDT(v(1)) must gave - A/k.cos(kt)
but from SDT I get - A/k.cos(kt) + A and this is wrong .
You are thinking of the indefinite integral formula Integral(sin()) = -cos()
The SDT operator in Micro-Cap does a definite integration (one with limits) and integrates from T=0 to T=End. The definite integral of SIN(2*PI*F0*T) is 1-COS(2*PI*F0*T).