This clip from a recent programming at jsoftware.com letter begs for the turn: NB. We'll sample a sine wave at 194.18 Hz over 1 second. NB. Or in other words: our x axis covers 194.18 radians, NB. and we'll choose our 8000 sample points from that range: x =: (194.18 * 2p1) * (%~ i.) 8000