daft

adj : informal or slang terms for mentally irregular [syn: {balmy},

{barmy}, {bats}, {batty}, {bonkers}, {buggy}, {cracked},

{crackers}, {dotty}, {fruity}, {haywire}, {kooky}, {kookie},

{loco}, {loony}, {loopy}, {nuts}, {nutty}, {wacky}]

DFT

{discrete Fourier transform}