From: Map-invariant spectral analysis for the identification of DNA periodicities
ST-DFT
h ~ =h={ ( 1 ) i ,i=1,2,…M/R}
C ~ =C={ e − j 2 Πr / R ,r=1,2,…R}
ST-DCT
h ~ ={ ( − 1 ) i ,i=1,2,…M/R}
C ~ ={cos((2r+1)Π/2R),r=1,2,…R}
ST-DST
C ~ ={sin((2r+1)Π/2R),r=1,2,…R}
ST-DHT
C ~ ={cos(2Πr/R)+sin(2Πr/R),r=1,2,…R}