Difference between revisions of "LlCos"
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|return_text=that is the cosine of {{LSLP|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 | default | ||
{ | { | ||
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llOwnerSay("The cosine of " + (string)r + " in radians or " + (string)(r * RAD_TO_DEG) + " in degrees is " + (string)llCos(r)); | 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 14:31, 14 September 2015
LSL Portal | Functions | Events | Types | Operators | Constants | Flow Control | Script Library | Categorized Library | Tutorials |
Summary
Function: float llCos( float theta );1 | Function ID |
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));
}
}