Hi, Does anyone know if Can I calculate with some command in ngspice the trise and tfall?

@Juan Andres add this:

.measure tran trise

+ TRIG v(out) TD=10.5n VAL=0.1 RISE=1

+ TARG v(out) TD=10.5n VAL=1.7 RISE=1

this measures rise time of V(out) from 0.1V to 1.7V for the first time after 10.5ns

But this is after of my simulation Tran?

@Vicente Osorio fyi