The Math Shtick
 
Calculus
A basic explanation of Del.

Break it down. That's what a Fourier Series does. Find out about this mathematical jugernaut used everywhere from OCR to equalizers to guided missile programming.

Similar to the Fourier Series, the Fourier Transform is a great tool, for looking at data from a different perspective.

A series which is useful for approximating many functions which would otherwise drive us nuts.

"Mathematics compares the most diverse phenomena and discovers the secret analogies that unite them."
Joseph Fourier