Parseval's theorem

{
  "id": "MLC-T-MET-010654",
  "term": "Parseval's theorem",
  "field": "Meteorology and atmospheric science",
  "definition": "A mathematical principle stating that the total energy of a signal is the same whether computed in the time domain or the frequency domain. It relates the sum or integral of the square of a function to the sum or integral of the square of its Fourier transform. This theorem is applied in signal processing and spectral analysis of atmospheric data.",
  "url": "https://mlchart.com/terminology/meteorology/parseval-s-theorem/"
}