Eddie's Math and Calculator Blog

  The blog could use change in scenery: Eddie All original content copyright, © 2011-2026. Edward Shore. Unauthorized use and/or unautho...

HP 12C: Quickly Approximating Arc Tangent The HP 12C does not have trigonometric functions. Various sources list on how such f...

Casio fx-3650P vs. Casio fx-3650P II: Programs Here are four programs that are done with both the fx-3650P and fx-3650P II to illustrate...

  Spotlight: Casio fx-3650PII and Comparison with the fx-3650P and fx-50FH (II) Quick Facts: fx-3650P II Model: fx-3650P II Compa...

RPN: Absolute Value Equations with the HP 11C and DM41X Introduction: Solving |z * w + y| = x Today’s blog focuses on solvi...