Difference between revisions of "LlCos"
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{{LSL_Function | {{LSL_Function | ||
|inject-2={{LSL_Function/angle|theta}} | |||
|sort=Cos|func=llCos | |sort=Cos|func=llCos | ||
|func_id=1|func_sleep=0.0|func_energy=10.0 | |func_id=1|func_sleep=0.0|func_energy=10.0 | ||
|func_footnote | |func_footnote | ||
|p1_type=float|p1_name=theta | |p1_type=float|p1_name=theta | ||
|return_type=float | |return_type=float | ||
|return_text=that is the cosine of theta. | |return_text=that is the cosine of {{LSLP|theta}}. | ||
|spec | |spec | ||
|caveats | |caveats=because of IEE754 on single floats, llCos(PI_BY_TWO) returns -4.371139E-8 (hex : 0xB33BBD2E ) and not 0 ; llCos(PI/3.0) returns 0.49999997 ( hex : 0x3EFFFFFF ) and not 0.5 | ||
|examples | |examples=<source lang="lsl2">// Touch the object with this script in it to see the cosine of random numbers! | ||
default | |||
{ | |||
touch_start(integer num) | |||
{ | |||
float r = llFrand(TWO_PI); | |||
llOwnerSay("The cosine of " + (string)r + " in radians or " + (string)(r * RAD_TO_DEG) + " in degrees is " + (string)llCos(r)); | |||
} | |||
}</source> | |||
|helpers | |helpers | ||
|also_functions= | |also_functions= | ||
Latest revision as of 13:31, 14 September 2015
| LSL Portal | Functions | Events | Types | Operators | Constants | Flow Control | Script Library | Categorized Library | Tutorials |
Summary
Function: float llCos( float theta );| 0.0 | Forced Delay |
| 10.0 | Energy |
Returns a float that is the cosine of theta.
| • float | theta | – | angle expressed in radians |
Caveats
because of IEE754 on single floats, llCos(PI_BY_TWO) returns -4.371139E-8 (hex : 0xB33BBD2E ) and not 0 ; llCos(PI/3.0) returns 0.49999997 ( hex : 0x3EFFFFFF ) and not 0.5
Examples
// Touch the object with this script in it to see the cosine of random numbers!
default
{
touch_start(integer num)
{
float r = llFrand(TWO_PI);
llOwnerSay("The cosine of " + (string)r + " in radians or " + (string)(r * RAD_TO_DEG) + " in degrees is " + (string)llCos(r));
}
}
See Also
Deep Notes
Signature |
|---|
function float llCos( float theta ); |