Move everything to old
post calc improvements as week10 Signed-off-by: Jim Pryor <profjim@jimpryor.net>
calculator improvements Signed-off-by: Jim Pryor <profjim@jimpryor.net>
link to monads in category theory Signed-off-by: Jim Pryor <profjim@jimpryor.net>
tweak advanced Signed-off-by: Jim Pryor <profjim@jimpryor.net>