Eddie's Math and Calculator Blog
It's all about mathematics and calculators
Thursday, June 8, 2017
HP 20S and HP 21S: RPN Arithmetic Simulator
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HP 20S and HP 21S: RPN Arithmetic Simulator This program will allow the user to simulate RPN (Reverse Polish Notation) for five arith...
Wednesday, June 7, 2017
HP 20S and HP 21S: 2 x 2 Matrices Inverse and Square
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HP 20S and HP 21S: 2 x 2 Matrices Inverse and Square Let M be the 2 x 2 matrix: M = [ [ R1, R2 ] [ R3, R4 ] ] Store values i...
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