math
Bilibili0:28Bilibili · Charles队长Original video
Calculus · 中文
Fourier series
A Chinese visual explanation of fourier series. Catalog metadata imported from the original Math Video site and checked against the source platform; not a transcript.
Reviewed learning material · Video analysis · English
The square wave is 1 on the positive half-period and −1 on the negative half-period. Adding odd sine harmonics makes partial sums approach its flat sections. At jumps the series approaches the midpoint of the one-sided limits, while nearby Gibbs overshoot persists as more terms are added.
Before you watch
- Periodic functions and parity
- Adding sine harmonics
- Pointwise and uniform convergence
