of the Cheat Sheet) in less than 15 minutes. You can learn the basics of RPN (1., 2., 3. The ‘Cheat Sheet’ below serves as a table of contents and as a summary for this tutorial. As far as possible it uses the colours of the keys as they appear in that Manual, so the colours of your calculator’s keys will almost always differ don’t get confused by that. This tutorial is a tribute to the HP‑35 and especially to the lay-out of the beautiful and informative HP‑35 Operating Manual. HP‑12C Platinum, HP 17bII+ and HP 35s, in all calculators sold byĪlso in the amazing WP 34S and WP 31S, and in a slightly modified version in the HP 20b and 30b and in graphing calculators like the HP 50g and HP Prime. This same RPN is used in calculators sold by HP nowadays, like the HP‑12C, In 1972, almost 50 years ago, HP launched the HP‑35, the first pocket calculator with transcendental functions and the first with RPN.
What’s better, it gives you more insight into yourĬalculations than using the ‘algebraic’ systems used by other calculators and it keeps you and not your calculator (see Appendix D) in command of what is calculated. RPN, postfix notation or stack logic, the calculator logic system used in many Hewlett-Packard (HP) calculators and simulations thereof, like the standard Calculator of macOS in RPN-mode (start with ⌘R or Command+R), is easy to use and saves you time because there is no need to use brackets or =. some things HP did not tell Copyright © 2014 by Hans Klaver, The Netherlands
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