equilibrium problem
add sounder example
change planck
Merge branch 'master' of https://github.com/a301-teaching/classcode into friday
friday diff_toa checkin
Merge branch 'master' of https://github.com/a301-teaching/classcode into friday
revert planck.py
add docstring
Merge branch 'master' of https://github.com/a301-teaching/classcode into friday
first attempt Monday