Eddie's Math and Calculator Blog

Blog Entry #67 Introduction The goal is to find the velocity of a ball, and the angle it travels, given the initial velocity and angle. The...

Welcome to Blog Entry #66 This is a program for some solving elastic collision problems for the Hewlett Packard 50g calculator. Variables (...

Welcome to blog entry #65! This is the first blog entry using the new Apple iPad (3rd generation, white with 64 GB, so excited) Introduct...

Welcome to blog entry #64! HAPPY ST PATRICK'S DAY (WEEKEND)! Billiards and Math Ever wondered what happens with you take the cue stick,...

Projectile Motion This blog is about projectile motion. Most resources give an introductory treatment of projectile motion. And yes, I w...

Why π is My Favorite Number The number π describes a beautiful relationship between a circle's circumference, area, and radius. The π i...

All About Spirals This blog will about spirals. Why? I thought it would be fun. And I like spirals. Regular Spirals Source: http://www...

These are some graphs I posted on both my Twitter and Facebook accounts recently. Enjoy! Range for Bézier curves: 0 ≤ t ≤ 1 Eddie

Introduction A short definition: a Bézier Curve is a set of parametric equations involving n points: x(t)=Σ( nCr(n,k) * (1-t)^(n-k) * t^k *...

Graphing functions on the complex plane is not easily handled on a graphing calculator. Few options exist: (1) build a program to build ...

Repeated Functions If you have ever owned a calculator, chances are you done this: you enter a number and press the square root button many...

I went to the Pasadena City College Swap Meet yesterday, and I found this calculator. Pictured is the Atari CC 1900 calculator. While it ...

I think I want to tackle chaos theory or the study of patterns next.

Setting up equations for the integration and solve functions for the HP 15C. Since the release of the HP 15C Limited Edition, the processi...