nptel.ac.in
Unknown
NPTEL is an online education platform providing IIT/IIScādeveloped video lectures, course materials, and assessments across engineering and science disciplines. It includes courses on signal processing and mathematics, where you can study Fourier transforms through lectures, readings, and problem sets.
More resources on Fourier Transforms
Harmonic Analysis Resources
Curated list from MathOverflow/Reddit
Fourier Analysis Notes
Terry Tao's notes on harmonic analysis
Pauls Online Math Notes - Fourier Series
Free comprehensive notes
Fourier Series and Transforms
Detailed practitioner rec from r/math
Fourier Transform Introduction
Brilliant overview with harmonic analysis basics
mathworld.wolfram.com
MathWorld is Wolfram's comprehensive online mathematics encyclopedia, offering detailed, rigorously written articles on a wide range of math topics. Its Fourier Transform entries cover continuous and discrete transforms, key properties, transform pairs, formulas, examples, and related concepts and applications.