This directory contains only Mathomatic scripts. They include tests, examples, short tutorials, and educational math toys. To run all tests, type "mathomatic all". For a short, educational demo, type "mathomatic heron". Look around and have fun! Feel free to contribute your Mathomatic scripts. Here is what is available in this directory: all.in - script that reads in all test scripts circles.in - uses eliminate command to combine the equations for 2 circles conversions.in - commonly used metric/English conversions cubic.in - calculate the 3 solutions of any cubic polynomial equation david.in - demonstration of eliminate command usage demo.in - a small Mathomatic demonstration distance.in - derive the shortest distance between a point and a line in 2D electronics.in - electrical formulas ellipse.in - 2D equations for ellipses examples.in - some simple examples of Mathomatic in action fibonacci.in - direct formula to calculate any Fibonacci number finance.in - derivation of the mortgage payment financial formula fraction.in - shows how "simplify fraction" and "unfactor fully" work geometry.in - commonly used standard (Euclidean) geometric formulas heron.in - formula for the area of a triangle and derivations how_limit_works.in - how the experimental limit command works hypertrig.in - definitions for hyperbolic trigonometry linear.in - combine 3 simultaneous linear equations with 3 unknowns pie.in - how to calculate the universal constants pi and e points.in - derive simple equations from 2 or 3 points in 2 dimensions poly.in - combine 3 quadratic equations with 3 unknown coefficients pyth3d.in - arrives at the distance between two points in 3D space radius.in - some fun formulas for the radius of a circle trig.in - trigonometric functions as complex exponential equations