Saturday, June 27, 2026

HP 32SII: Volume of a Square Frustum (Three Approaches in RPN)

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HP 32SII: Volume of a Square Frustum (Three Approaches in RPN ) The volume of a square frustum is: v = height ÷ ...
Sunday, June 21, 2026

My International Casio Collection (So Far)

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 Pictured: Pic 1:  Casio fx-991CN X (China)  Pic 2:  Casio fx-570SPX II Iberia (Spain) Pic 3:  Casio fx-92 Collège (France) All original co...
Saturday, June 20, 2026

High Rollers: When Only Even Numbers Remain – Game Strategy

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High Rollers: When Only Even Numbers Remain – Game Strategy Introduction In the famous game show High Rollers, which aired from...
Saturday, June 13, 2026

Numworks (Python): Parallelograms Described by Vectors

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Numworks (Python): Parallelograms Described by Vectors Introduction The script drawpgram.py draws a parallelogram constructed by ...
Saturday, June 6, 2026

RPN: Solving T * w + Z = Y * w + X (featuring DM42, HP 67)

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RPN:   Solving T * w + Z = Y * w + X  (featuring DM42, HP 67) Introduction and Code This is inspired in part by the new Casio fx-92 b...
Saturday, May 30, 2026

Numworks (Python): Determining Earth’s Acceleration of Gravity

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Numworks (Python): Determining Earth’s Acceleration of Gravity Introduction Note: We will only be using SI units on this blog en...
Sunday, May 24, 2026

The New TI-84 Evo

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The New TI-84 Evo Some Notes on the TI-84 Evo The TI-84 Evo was released on April 28, 2026 in the United States. It is an updat...