from The American Heritage® Dictionary of the English Language, 4th Edition
- n. An infinite series whose terms are constants multiplied by sine and cosine functions and that can, if uniformly convergent, approximate a wide variety of functions.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. a series of cosine and sine functions or complex exponentials resulting from the decomposition of a periodic function
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. the sum of a series of trigonometric expressions; used in the analysis of periodic functions
After Baron Jean Baptiste Joseph Fourier.(American Heritage® Dictionary of the English Language, Fourth Edition)
Named after Joseph Fourier, a French mathematician (Wiktionary)