Eddie's Math and Calculator Blog

I love swap meets and pawn shops. Eddie

Earlier this month, I received a request from Jason Foose. These are six graphs of y = x * rand^rand: two with the TI-84+, two with the C...

Matrix Function Comparison (fx-991ES/fx-115ES vs TI 36X Pro) Today's blog entry comes from a question by An Artist: An Artist has left...

Wishing everyone a happy and safe Thanksgiving. I am very thankful to all who follow my blog and all who read and make comments. You are ...

This is a short comparison between the programming languages of the Texas Instruments TI-84+ and the Casio Prizm. For each category, I wil...

This blog entry is possible thanks to @mathematicsprof on Twitter. He posted an article "Jacobi Elliptic Functions from a Dynamic Syst...

Hi everybody. Today I want to talk about tax policy and how the potential tax changes come January 1, 2013 affects taxpayers in the Unit...

Today is a good day. I went to the library of alma mater, Cal Poly Pomona for library day. Once a month I try to visit a university libra...

Good Friday! One of my favorite mathematical functions is the sine function. Not only the sine wave helps describe a lot of physical phen...

Review: FreeCalcFxC Platforms: iPhone and iPod Touch, will run on an iPad Versions Available: Free Version $0.99 Scientific Version $0.99...

Monday's blog entry (10/22/2012), Factorials and Arrangements of Unique Objects dealt with permutations of arranging a group of objec...

Last weekend my dad asked me about my blog, and the last entry was about factorials of large numbers. Clicking on this link will take you ...

Hi everyone! I am blogging from Coffee Klatch in San Dimas, CA! I was overdue for a latte. Their pumpkin brownies are to die for. Facto...