<= — Determines if one value is less than or equal to another.

In the above conditional, *a* and *b* are first compared. If the indicated relation is true (*a* less than or equal to *b*), then the conditional expression has the value of *v1*; if the relation is false, the expression has the value of *v2*.

NB.: If *v1* or *v2* are expressions, these will be evaluated before the conditional is determined.

In terms of binding strength, all conditional operators (i.e. the relational operators (*<*, etc.), and *?*, and *:* ) are weaker than the arithmetic and logical operators (*+*, *-*, ***, */*, *&&* and *||*).

These are *operators* not *opcodes*. Therefore, they can be used within orchestra statements, but do not form complete statements themselves.

Here is an example of the <= operator. It uses the file *lessequal.csd*.

**Example 25. 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 realtime audio input is needed too ; For Non-realtime ouput leave only the line below: ; -o <=.wav -W ;;; for file output any platform </CsOptions> <CsInstruments> sr = 44100 ksmps = 32 nchnls = 2 0dbfs = 1 instr 1 kval randomh 0, 1.2, 20 ;choose between 0 and 1.2 if kval >0 && kval<=.5 then ;3 possible outcomes kvl = 1 elseif kval >.5 && kval<=1 then kvl =2 elseif kval >1 then kvl =3 endif printks "random number = %f, result = %f\n", .1, kval, kvl asig poscil .7, 440*kvl, 1 outs asig, asig endin </CsInstruments> <CsScore> f1 0 16384 10 1 i 1 0 5 e </CsScore> </CsoundSynthesizer>

Its output should include lines like this:

random number = 1.035781, result = 3.000000 random number = 0.134037, result = 1.000000 random number = 0.130742, result = 1.000000 random number = 1.002550, result = 3.000000 random number = 0.370565, result = 1.000000 random number = 0.655759, result = 2.000000 random number = 0.676154, result = 2.000000 ......