Online HP-35 Emulator - First scientific pocket calculator from 1972

[Gerson W. Barbosa]

(12-26-2023 07:23 PM)Thomas Klemm Wrote:  

(12-25-2023 01:50 PM)Gerson W. Barbosa Wrote:  8 7 8 ln 1 6 × ENTER↑ ln ÷ ln

I like how you sneaked in yet another solution to a \(\pi\) approximation contest into this bug report.

That’s an old one. I found it years ago with help of the HP-32S solver. I thought it might make for a good test for the ln function for 10-digit calculators, but I was wrong as it failed to detect that particular bug.
Some new approximations have been placed in the Test forum, together with some not so new.