Calculator Algorithms - Printable Version +- HP Forums (https://www.hpmuseum.org/forum) +-- Forum: HP Calculators (and very old HP Computers) (/forum-3.html) +--- Forum: General Forum (/forum-4.html) +--- Thread: Calculator Algorithms (/thread-20532.html) |
Calculator Algorithms - SlideRule - 09-21-2023 11:07 AM An excerpt from Engineer's Notebook, ELECTRONICS, v7 i7, 4 APR 1974, pgs. 142-146 Calculator algorithms While you're saving up for that more expensive electronic slide rule, try updating your four-function electronic calculator. In this Engineer's notebook, you'll find a collection of algorithms that extend the computing power of your pocket calculator considerably. Although calculator algorithms are frequently not really brand new, don't forget that a new look at an old equation can save you many keystrokes or even a trip to your library shelf for those time-consuming lookup tables. pg. 142 Evaluating ex with constants pg. 142 Chain operation for finding ex pg. 143 Counting keystrokes to get results pg. 143 Evaluating logarithms by counting keystrokes pg. 144 Another way to compute ex pg. 144 Computing sine & cosine with linear interpolation pg. 145 Polynomial evaluations can be fast and accurate pg. 146 Fast number conversion from any base to base-10 pg. 145 Calendar computations: past, present, and future BEST! SlideRule RE: Calculator Algorithms - Jonathan Busby - 09-21-2023 02:48 PM Thanks! Very interesting material -- I have vintage, mint condition four-bangers; perhaps I'll try some of the techniques on them I also wonder if they can be applied to a Suanpan abacus... Oh, here's the PDF download link : https://archive.org/download/bitsavers_Electronic9740404_156593902/Electronics_V47_N07_19740404.pdf I'll have some fun reading this on my Kindle Regards, Jonathan |