frac — Returns the fractional part of a decimal number.


Returns the fractional part of x.


frac(x) (init-rate or control-rate args; also works at audio rate in Csound5)
frac(k/i[]) (k- or i-arrays )

where the argument within the parentheses may be an expression. Value converters perform arithmetic translation from units of one kind to units of another. The result can then be a term in a further expression.


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

Example 350. Example of the frac 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 frac.wav -W ;;; for file output any platform

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

; Instrument #1.
instr 1
  i1 = 16 / 5
  i2 = frac(i1)

  print i2


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


Its output should include a line like this:

instr 1:  i2 = 0.200

See Also

abs, exp, int, log, log10, i, sqrt


Example written by Kevin Conder.