Maybe that it's "just" a change of basis, onto a basis made of orthogonal period... | Hacker News

Hacker Newsnew | past | comments | ask | show | jobs | submit

		msla on Nov 17, 2022 \| parent \| context \| favorite \| on: Demystifying Fourier analysis Maybe that it's "just" a change of basis, onto a basis made of orthogonal periodic functions.

franknstein on Nov 17, 2022 [–]

Change of bases being done with orthogonal projection derived from defining scalar product of two functions via finite integral of product of two functions: f dot g = integral f(x)g(x)dx over some interval.

Guidelines | FAQ | Lists | API | Security | Legal | Apply to YC | Contact