Stupid Math Tricks

Having too much time on my Having too much time on my hands … A few months ago, there was a minor Internet Brouhaha over a vi...

Last week we looked at how to get analytic expressions for the sine and cosine of angles between 0 and 90 ° , provided that the angle was a...

Civilization has fallen. Every computer has ceased to function. All libraries are rubble. Worse, every copy of Abramowitz and Stegun ha...

That counterpart to last week's development of the exponential function is the logarithm. As anyone who ever played with the antique ...

Welcome to Stupid Math Tricks . Over the last mumblty years or so I've found myself scratching out various proofs of things that are ...