log10
Prev | Orchestra Opcodes and Operators | Next

## 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)

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 270. 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, i, sqrt

## Credits

Written by John ffitch.

New in version 3.47

Example written by Kevin Conder.

Prev | Up | Next
log | Home | logbtwo