Statistics How To

Fourier transform

Characteristic Functions >

A Fourier transform (FT) is a mathematical technique that decomposes a function of time (a waveform signal) into a sum of sine waves. In essence, a Fourier transform maps from the time domain to the frequency domain, and is widely used in chemistry, physics, and engineering. Some operations on a given function may be easier to perform in the time domain; others become far simpler in the frequency domain.

Any waveform can be translated, by means of a Fourier transform, into the sum of sines and cosines.

------------------------------------------------------------------------------

Confused and have questions? Head over to Chegg and use code “CS5OFFBTS18” (exp. 11/30/2018) to get $5 off your first month of Chegg Study, so you can understand any concept by asking a subject expert and getting an in-depth explanation online 24/7.

Comments? Need to post a correction? Please post a comment on our Facebook page.

Check out our updated Privacy policy and Cookie Policy