"We'll sample a sine wave at 194.18 Hz over 1 second" does not mean that "our x axis covers 194.18 radians". It means that our x axis covers 1220 radians.
194.18*2p1 1220.06892 The trigonometric function ^0j2p1* can be written simply _1^+: (but alas not 1^ even if _1^2 is equal to 1). If y is a rational number then _1^+:y is an algebraic number. The transcendental numbers e=.^1 and pi=.o.1 do not show. >________________________________ >Fra: David Ward Lambert <[email protected]> >Til: programming <[email protected]> >Sendt: 10:13 torsdag den 14. juli 2011 >Emne: [Jprogramming] Tau =: 2p1 > >This clip from a recent [email protected] 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 > > > >---------------------------------------------------------------------- >For information about J forums see http://www.jsoftware.com/forums.htm > > > ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
