Eddie's Math and Calculator Blog

Retro Review:   Radio Shack EC-4026 Quick Facts: Model:  EC-4026 Company:  Radio Shack Equivalent Of:  Casio fx-4500P, Casio fx-4500PA Years...

Converting a Line in Parametric Line to a Function Line  From (x(t), y(t)) to y(x) Express a line, presented in parametric form: x = A * t +...

Swiss Micros DM41X and HP 41C:  Numeric Derivatives Introduction The program DFX calculates one of three types of derivative: 1.  Normal Der...

Python:  Financial Functions (2nd Edition) This is an update to the python file, which I first released on May 17, 2020: https://edspi31415....

The Sum and Product of Roots of a Quadratic Equation Introduction Let s, t be the roots of the equation a*x^2 + b*x + c = 0. Let: s = (-b + ...

Retro Review:   Hewlett Packard HP 45 Quick Facts: Model:  HP 45 Company:  Hewlett Packard Years:  1973-1976 Type:  Scientific Batteries: (o...

HP 32S and HP 32SII Week:  Maximum, Minimum , Histogram  Introduction The program takes data and determines: *  maximum of the data set (X) ...

HP 32S and HP 32SII Week:  Jurin's Law - Capillary Rise   Capillary Motion   Jurin's law describes the motion of liquid in small tub...

HP 32S and HP 32SII Week:  Total Drag Introduction The following equation calculates the total drag force applied to parallel to an area in ...

  HP 32S and HP 32SII Week:  Hypergeometric Distribution What are the Odds? The hypergeometric probably function deals with taking samples w...