a mapping of a function, as a signal, that is defined in one domain, as space or time, into another domain, as wavelength or frequency, where the function is represented in terms of sines and cosines.
Powerful Quotes In Honor Of Asian Pacific American Heritage MonthRead more in this article about some frequently asked questions and fun facts related to our definitions.
From Suffrage To Sisterhood: What Does Feminism Actually Mean?From the suffragist movement of the 1800s to the 2017 Women’s March in Washington, women have used the power of language and oration to inspire countless people.
Origin of Fourier transform
First recorded in 1920–25; see origin at Fourier analysis
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
an integral transform, used in many branches of science, of the form F(x) = [1/√(2π)]ʃe i xy f(y)d y, where the limits of integration are from –∞ to +∞ and the function F is the transform of the function f
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012