PlayGround

{{gallery>:playground?lightbox }} :playground

;<P ;<P
/!\/!\

coloUr

<color green> GREEEEEEEEEEN </color> <color green> GREEEEEEEEEEN </color> <color red> red </color> <color green> red </color>

FFT

Always forget this:

Indices	DC	POSITIVE	NYQUIST	NEGATIVE
C	`0`	`1 .. N/2-1`	`N/2`	`N-1 .. N/2+1`
Matlab	`1`	`2 .. N/2`	`N/2+1`	`N .. N/2+2`

^ Indices^DC^ POSITIVE ^ NYQUIST ^ NEGATIVE ^ ^ C | ''0'' | ''1 .. N/2-1'' | ''N/2'' | ''N-1 .. N/2+1'' | ^ Matlab | ''1'' | ''2 .. N/2'' | ''N/2+1'' | ''N .. N/2+2'' |