Conceptcore
Butterfly operation
Also called FFT butterfly.
The two-input, two-output combining step (x, y) -> (x + w y, x - w y) repeated in FFT stages.
The two-input, two-output combining step (x, y) -> (x + w y, x - w y) repeated in FFT stages.
About this page
The build computes these levels from the evidence in the repository. Each row says what the next level needs. Read what the levels mean.
| Ladder | Level | What the next level needs |
|---|---|---|
| Human proof | H0 no proof |
|
| Lean | L0 no Lean part |
|
| Visual | V0 none |
|
| Writing | W0 stub |
|
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