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sqrt

Returns the square root of x (x non-negative).

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

Syntax

sqrt(x)      (no rate restriction)
sqrt(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 sqrt opcode. It uses the file sqrt.csd.

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

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

instr 1

asig   pluck 0.7, 55, 55, 0, 1
kpan   line 0,p3,1 
kleft  = sqrt(1-kpan) 
kright = sqrt(kpan) 
printks "square root of left channel = %f\\n", 1, kleft ;show coarse of sqaure root values
       outs asig*kleft, asig*kright                                     ;where 0.707126 is between 2 speakers

endin 
</CsInstruments>
<CsScore>

i 1 0 10
e
</CsScore>
</CsoundSynthesizer>

Its output should include lines like these:

square root of left channel = 1.000000
square root of left channel = 0.948688
square root of left channel = 0.894437
square root of left channel = 0.836676
square root of left channel = 0.774620
square root of left channel = 0.707139
square root of left channel = 0.632499
square root of left channel = 0.547781
square root of left channel = 0.447295
square root of left channel = 0.316242

See also

Mathematical Functions