cos — Performs a cosine function.


Returns the cosine of x (x in radians).


cos(x) (no rate restriction)


Here is an example of the cos opcode. It uses the file cos.csd.

Example 75. Example of the cos opcode.

See the sections Real-time Audio and Command Line Flags for more information on using command line flags.

; Select audio/midi flags here according to platform
; Audio out   Audio in
-odac           -iadc    ;;;RT audio I/O
; For Non-realtime ouput leave only the line below:
; -o cos.wav -W ;;; for file output any platform

; Initialize the global variables.
sr = 44100
kr = 4410
ksmps = 10
nchnls = 1

; Instrument #1.
instr 1
  irad = 25
  i1 = cos(irad)

  print i1


; Play Instrument #1 for one second.
i 1 0 1


Its output should include lines like this:

instr 1:  i1 = 0.991

See Also

cosh, cosinv, sin, sinh, sininv, tan, tanh, taninv


Example written by Kevin Conder.