* RC low-pass filter sample - cutoff-frequency reasoning check
* Expected cutoff: 1 / (2*pi*10k*10nF) ~= 1.59 kHz.

Vin IN 0 AC 1
R1 IN OUT 10k
C1 OUT 0 10n

.ac dec 40 10 100k

.control
run
set wr_singlescale
set wr_vecnames
wrdata eda-portfolio/evidence/ngspice/rc-low-pass-output.csv vdb(OUT) vp(OUT)
quit
.endc

.end