abs
Prev  Orchestra Opcodes and Operators  Next

abs

abs — Returns an absolute value.

Description

Returns the absolute value of x.

Syntax

abs(x) (no rate restriction)

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.

Examples

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

Example 25. Example of the abs opcode.

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

<CsoundSynthesizer>
<CsOptions>
; 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 abs.wav -W ;;; for file output any platform
</CsOptions>
<CsInstruments>

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

; Instrument #1.
instr 1
  i1 = -6
  i2 = abs(i1)

  print i2
endin


</CsInstruments>
<CsScore>

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


</CsScore>
</CsoundSynthesizer>


Its output should include lines like: 

instr 1:  i2 = 6.000

See Also

exp, frac, int, log, log10, i, sqrt

Credits

Example written by Kevin Conder.

Prev  Up  Next
a  Home  active