abs
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## abs

abs — Returns an absolute value.

## Description

Returns the absolute value of x.

## 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.csd.

Example 42. 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
    -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

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

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