This is predator's elcheapo minimum effort web page. No, I don't care what you think.

Code snippets in C to calculate some stuff (thanks to Andy Nicholson for guidance and bugfixes)

benfords.c Calculates Benford's Law probability for a given symbol in an N- symbol set.
channelz.c calculates Shannon's Channel Capacity for N channels in bits per second, given bandwidth and Signal-to-noise ratio.
bits_per.c which, for a set of N symbols, tells you how many bits is intrinsic to each symbol.

Click on the links below for approx 3Mb .PNG schematics for the (very old) Kikusui 555 oscilloscope.