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abs

Returns an absolute value.

Syntax

abs(x) (no rate restriction)
abs(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.

Examples

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

Example of the abs opcode.
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<CsoundSynthesizer>
<CsOptions>
; Select audio/midi flags here according to platform
-odac     ;;;realtime audio out
-d        ;;;no display
;-iadc    ;;;uncomment -iadc if realtime audio input is needed too
; For Non-realtime ouput leave only the line below:
; -o abs.wav -W ;;; for file output any platform
</CsOptions>
<CsInstruments>

sr = 44100
ksmps = 32
nchnls = 2

instr 1
  x:i = p4
  iabs = abs(x)
  print(iabs)
endin

</CsInstruments>
<CsScore>

i 1 0 1 0
i 1 + 1 -0.15
i 1 + 1 -13
e

</CsScore>
</CsoundSynthesizer>

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

Example of the abs opcode.
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<CsoundSynthesizer>
<CsOptions>
; Select audio/midi flags here according to platform
-odac     ;;;RT audio out
;-iadc    ;;;uncomment -iadc if RT audio input is needed too
; For Non-realtime ouput leave only the line below:
; -o abs.wav -W ;;; for file output any platform
</CsOptions>
<CsInstruments>

sr = 44100
ksmps = 32
nchnls = 2

instr 1
ix = p4
iabs = abs(ix)
print iabs

endin

</CsInstruments>
<CsScore>

i 1 0 1 0
i 1 + 1 -.15
i 1 + 1 -13
e

</CsScore>
</CsoundSynthesizer>

Its output should include lines like:

instr 1:  iabs = 0.000
instr 1:  iabs = 0.150
instr 1:  iabs = 13.000

See also

Mathematical Functions