llAcos

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/LSL

Acos

llAcos

Summary

Function: float llAcos( float val );

172	Function ID
0.0	Forced Delay
10.0	Energy

Returns a float that is the arccosine in radians of val

• float

val

–

must fall in the range [-1.0, 1.0]

The returned value is in the range [0.0, PI]^[1]

Caveats

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Examples

<lsl> // This example exercises the full valid range of argument from -1.0 to +1.0

default {

   touch_start(integer num_detected)
   {
       float random = llFrand(2.0) - 1.0;

       llOwnerSay("The arccosine of " + (string)random + " is " + (string)llAcos(random));
   }

}

</lsl>

See Also

Functions

• llSin	llAsin	–	sine & inverse Sine
• llCos		–	cosine
• llTan	llAtan2	–	tangent & inverse tangent

Articles

•

Inverse trigonometric function

Deep Notes

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Footnotes

1. ^ The ranges in this article are written in Interval Notation.

Signature
function float llAcos( float val );