TIL

by jtauber

10 thoughts
last posted May 4, 2016, 1:26 a.m.

7 earlier thoughts

1

You can do a discrete Fourier transform in just one short line of J:

dft=: +/ .* ^@o.@(0j2&% * (*/ -)@i.)@#

Courtesy of this post by Andrey Paramonov which I indirectly found via a link from Dave's recently TIL post on the jlang hashtag.

created Jan. 30, 2015, 9:24 p.m.

2 later thoughts

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