Unverified50% confidenceFactExact time
The trigonometric basis, i.e., the Fourier basis {1, cos(nπx), sin(nπx)} or complex exponentials {e^{inπx}}, is an orthogonal basis of the space of periodic functions.
1
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50%
Confidence
Long-term
Relevance
11/2/2026
First Seen
Sources
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