Word.ws English Dictionary

Parseval's theorem

Parseval's theorem proper noun: the result that the Fourier transform is unitary; loosely, that the sum (or integral) of the square of a function is equal to the sum (or integral) of the square of its transform.

Proper noun

Parseval's theorem

  1. The result that the Fourier transform is unitary; loosely, that the sum (or integral) of the square of a function is equal to the sum (or integral) of the square of its transform.

Origin of Parseval's theorem

Named after Marc-Antoine Parseval.

Questions about Parseval's theorem

What does Parseval's theorem mean?
Parseval's theorem means the result that the Fourier transform is unitary; loosely, that the sum (or integral) of the square of a function is equal to the sum (or integral) of the square of its transform.
What part of speech is Parseval's theorem?
Parseval's theorem is a proper noun.

Words near Parseval's theorem in the dictionary

  1. parsemé
  2. parser
  3. parsers
  4. parses
  5. parsettensite
  6. Parseval's theorem
  7. parsha
  8. Parshall
  9. Parshalls
  10. parshas
  11. parshioth

Source and license

Adapted from Wiktionary: Parseval's theorem (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.

Last updated:

Cite this entry: “Parseval's theorem.” Word.ws, https://word.ws/parseval%27s_theorem. Based on Wiktionary, CC BY-SA 4.0.