RC charge: pulse rises at 1ms, R=10k, C=1u, tau=10ms
V1 vin 0 PULSE(0 5 1m 1u 1u 100m 200m)
R1 vin out 10k
C1 out 0 1u
.control
set wr_singlescale
set wr_vecnames
tran 0.05m 61m
wrdata rc.dat v(vin) v(out)
quit
.endc
.end