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Eddie's Math and Calculator Blog: Today: HP35 3 x 3 Determinant and Cramer's Rule [email protected] Last Week: HP 41C/42S: Paired T Statistic and HP 12C: Error Function approximation I will have new posts every Saturday and Sunday, along with Thanksgiving weekend this November #mathematics #calculators #HewlettPackard #HP42S #hp41C #HP12C #hp35S #programming #math https://www.instagram.com/p/B4pYJOrBZkf/?igshid=q29jm68jdu86
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The ENTER key on a calculator is a clear sign that it employs the Reverse Polish notation or RPN method to evaluate mathematical expressions. My first RPN calculator was the 1978 model HP32E which I owned and used for over 20 years. My first serious programming was done on an HP41C, basically a handheld computer which was also used as the third level backup system computer for the first nine space shuttle missions. It's always fun to hand your RPN calculator to an unsuspecting victim and watch them search for the nonexistent "=" key. Guess it's a geek thing. 1/500 sec @ f/2.0, 50mm macro lens. (at Virginia Beach, Virginia) https://www.instagram.com/p/BsRdwL7BZwV/?utm_source=ig_tumblr_share&igshid=dqt7b4tclvuh
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RARE 1981 PROMO Hewlett Packard HP41C CV Calculator Accessories Catalog Brochure
$30.00End Date: Mar-26 20:46Buy It Now for only: US $30.00Buy it now | Add to watch list http://dlvr.it/QM0XR8
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HP 41C and DM 41L: Basic EKG Calculations edspi31415.blogspot.com #hp41C #dm41L #cardiac #EKG #programming #mathematics #vintagecalculator #calculators #heartbeat https://www.instagram.com/p/B5fi55gFrUN/?igshid=ola7z15hu0z1
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Rounding for the HP 12C and HP 41C/DM41 - Regardless of Mode Settings [email protected] #rounding #HP12C #hp41C #dm41L #calculators #programming #numbers #mathematics https://www.instagram.com/p/B4IHxdopZxY/?igshid=15ied6gcih38k
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HP 41C/DM41, TI-60: Exponentation Of Large Numbers [email protected] n = y ^ x n = 10^( frac (x log y ) ) * 10^( int (x log y) ) Mantissa = 10^( frac (x log y ) ) Exponent = int(x log y) #math #mathematics #ti60 #hp41C #dm41L #exponents #largenumbers #logarithms https://www.instagram.com/p/B1WH-FeB5dW/?igshid=9vjt7sxvm4pt
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HP Prime and HP 41C/DM41L: Sum of Two Squares [email protected] #algebra #math #sumoftwosquares #hpprime #dm41L #hp41C #programming #numbertheory https://www.instagram.com/p/B1RGf1zB6jB/?igshid=1doslm7tnolur
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HP 41C/DM41: Square Root of Sum of Squares Calculate √(a^2 + b^2 + c^2 + ... ) Program: 01 LBL SQSUM 02 R-P 03 STOP (R/S) 04 GTO SQSUM Example: √(3^2+4^2+6^2+7^2) Input: 3, ENTER, 4, XEQ, ALPHA, SQSUM, ALPHA, 6, R/S, 7, R/S Result: approx 10.4881. (exactly √110) Source: Willam Kolb, John Kennedy, Richard Nelson "Better Programming On The HP-67/97". PPC 1978 #math #mathematics #algebra #quickvideo #hp41C https://www.instagram.com/p/B3DElPJh1cN/?igshid=hldmxa85je0t
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Now on edspi31415.blogspot.com: 1. Triangle Numbers for the TI-60 2. Schur-Cohn Algorithm for the DM-41L and HP 41C 3. Polynomial from Roots for the DM-41L and HP 41C 4. Retro Review: TI Explorer Plus #math #tiexplorerpkus #ti60 #hp41c #dm41l #numbertheory #programming #polynomials #algebra #review https://www.instagram.com/p/BreQjchBNOZ/?utm_source=ig_tumblr_share&igshid=1k3hjhvidsbu3
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