Rotating Integrals

December 22, 2015 01:11

This post assumes you know some trigonometry and can do some integral calculus on it.

My little brother in college complained about sines and cosines in an indefinite integral today. Specifically, an integration that he was annoyed with was:

\[\int{x^3\,sin(x)\,dx}\]

It sounded like a whine...

Finding Square Roots

June 12, 2015 01:36

Most of us has at some point in our lives used the Math.sqrt() function. We would even know that \(\sqrt{2} = 1.414\ldots\). However, we never really give how it is implemented a second thought. Thus is the power of a tight abstraction. For those of us who lived in the age of calculators, findi...