Saturday, September 2, 2023

TI-84 Plus CE Python: Drawing Random Paths

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TI-84 Plus CE Python: Drawing Random Paths Introduction The Python script PATHS draws a path from the left side to one of the other three si...
Monday, August 28, 2023

HP 15C Collector's Edition: Some Thoughts and Hidden Modes

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HP 15C Collector's Edition:   Some Thoughts and Hidden Modes On May 2, 2023, Moravia announced the return on the HP 15C programming scie...
Sunday, August 27, 2023

Casio fx-9750GIII and Swiss Micros DM42: Bijections

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Casio fx-9750GIII and Swiss Micros DM42:  Bijections Bijection - Three Problems   I have a subscription to Brilliant (brillant.org, this is ...
Saturday, August 26, 2023

Scientific Calculators: Maxima and Minima

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Scientific Calculators: Maxima and Minima Introduction This blog entry covers four calculators: Casio fx-991CW Casio fx-991EX Classwiz Texas...
Monday, August 21, 2023

Retro Review: Texas Instruments Galaxy 40sx

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Retro Review: Texas Instruments Galaxy 40sx Quick Facts Model:  Texas Instruments Galaxy 40sx Company:  Texas Instruments Years:  1991  (ear...
Sunday, August 20, 2023

HP 42S and DM42: Multiplying Huge Positive Integers

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HP 42S and DM42: Multiplying Huge Positive Integers Introduction The program LRG× multiplies to two large integers, allowing answers to exte...
Saturday, August 19, 2023

Casio fx-991CW and TI-30X Pro MathPrint: Arc Length of f(x)

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Casio fx-991CW and TI-30X Pro MathPrint:  Arc Length of f(x) Here is a tip for calculus class.   Calculating The Arc Length of f(x) The arc ...