^
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## ^

^ — “Power of” operator.

## Description

Arithmetic operators perform operations of change-sign (negate), don't-change-sign, logical AND logical OR, add, subtract, multiply and divide. Note that a value or an expression may fall between two of these operators, either of which could take it as its left or right argument, as in

a + b * c.

In such cases three rules apply:

1. * and / bind to their neighbors more strongly than + and −. Thus the above expression is taken as

a + (b * c)

with * taking b and c and then + taking a and b * c.

2. + and − bind more strongly than &&, which in turn is stronger than ||:

a && b - c || d

is taken as

(a && (b - c)) || d

3. When both operators bind equally strongly, the operations are done left to right:

a - b - c

is taken as

(a - b) - c

Parentheses may be used as above to force particular groupings.

The operator ^ raises a to the b power. b may not be audio-rate. Use with caution as precedence may not work correctly. See pow. (New in Csound version 3.493.)

## Syntax

    a ^  b  (b not audio-rate)

where the arguments a and b may be further expressions.

## Examples

Here is an example of the ^ operator. It uses the file raises.csd.

Example 30. Example of the ^ operator.

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     ;;;realtime audio out
    ;-iadc    ;;;uncomment -iadc if RT audio input is needed too
    ; For Non-realtime ouput leave only the line below:
    ;-o ^.wav        ; output to audio file
    </CsOptions>
    <CsInstruments>

    sr = 44100
    ksmps = 32
    nchnls = 2
    0dbfs  = 1

    instr 1	; Lo-Fi sound

    kpow	  = 10						;exponent
    kbase	  line 1, p3, 2.2				;vary the base
    kQuantize = kbase^kpow
    kQuantize = kQuantize*0.5				;half the number of steps for each side of a bipolar signal
    printk2	  kQuantize
    asig	  diskin2 "fox.wav", 1, 0, 1			;loop the fox
    asig	  = round(asig * kQuantize) / kQuantize		;quantize and scale audio signal
    	  outs asig, asig

    endin
    </CsInstruments>
    <CsScore>

    i1 0 19.2

    e
    </CsScore>
    </CsoundSynthesizer>

Its output should include lines like these:

     i1     0.50000
     i1     0.50021
     i1     0.50042
    ......
     i1  1327.49320
     i1  1327.74465

## See also

Arithmetic and Logic Operations

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