Fun Posts

Some other Posts 

The Unknown Thing – Why we use x – A TED Talk

Show Me the Math!  Was math invented or discovered?

 微积分 My calculus trip to China

No Foolin’  On truncated prime numbers

My Favorite Function Everybody should have one; this is mine.

My New Calculator The Curta – one of the first handheld calculators and it doesn’t need batteries.

What is a Solution? Thoughts on making up functions to solve an equation: We do it all the time!

What’s Your Favorite?  What’s your favorite equation?

Difficult Problems and Why We Like Them

Calculators A short past and future history of graphing calculators

Lin McMullin’s Theorem