https://pypi.org/project/calcfi-rule-of-72/ Recent updates to the Python Package Index for calcfi-rule-of-72 en https://pypi.org/project/calcfi-rule-of-72/0.1.0/ Rule of 72 — approximate years to double an investment at a given rate. Plus exact ln(2) version. MIT. jere.salmisto@gmail.com Sat, 23 May 2026 07:52:15 GMT