Eddie's Math and Calculator Blog
It's all about mathematics and calculators
Saturday, August 8, 2026
Python: Combination Functions (Micropython)
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Python: Combination Functions (Micropython) This is a set of combination functions. Programmed with a Casio fx-CG 100 but should ...
Saturday, August 1, 2026
DM42 and HP 42S: Quadratic Equation, Characteristic Polynomial, and Eigenvalues
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DM42 and HP 42S: Quadratic Equation, Characteristic Polynomial, and Eigenvalues The programs are listed for the Swiss Micros DM42 an...
Saturday, July 25, 2026
Earth's Radius by Latitude
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Earth's Radius by Latitude Introduction: Calculating the Earth’s Radius In quick, general calculations, we assume that the...
Saturday, July 18, 2026
TI-60 and HP 65: Distance by Stadia Tacheometry
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TI-60 and HP 65: Distance by Stadia Tacheometry Introduction The stadia calculation measures the distance from the level or theod...
Saturday, July 11, 2026
HP 20S: The July 2026 Program Collection
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HP 20S: The July 2026 Program Collection Triangulation d = l * sin(α) * sin(ß) ÷ sin(α + ß) Store in the following registers...
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