log10
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## log10

log10 — Returns a base 10 log.

## Description

Returns the base 10 log of x (x positive only).

The argument value is restricted for log, log10, and sqrt.

## Syntax

    log10(x) (no rate restriction)

    log10(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 log10 opcode. It uses the file log10.csd.

Example 516. Example of the log10 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 log10.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 = log10(8)
      print i1
    endin

    </CsInstruments>
    <CsScore>

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

    </CsScore>
    </CsoundSynthesizer>

Its output should include a line like this:

    instr 1:  i1 = 0.903

## See Also

abs, exp, frac, int, log, log, i, sqrt

## Credits

Written by John ffitch.

New in version 3.47

Example written by Kevin Conder.

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