Difference between revisions of "LlSin"
Jump to navigation
Jump to search
All Issues ~ Search JIRA for related Bugs
m |
|||
| (3 intermediate revisions by 2 users not shown) | |||
| Line 8: | Line 8: | ||
|return_text=that is the sine of {{LSLP|theta}}. | |return_text=that is the sine of {{LSLP|theta}}. | ||
|spec | |spec | ||
|caveats | |caveats=Because of IEE754 on floats , llSin(PI) returns -8.742278E-8 ( hex : 0xB3BBBD2E ) and not 0.0 . The error is cumulative with multiples of PI : For instance llSin(100000.0*PI) = 0.015890 when the result should be 0.0 | ||
|constants | |constants | ||
|examples=< | |examples=<source lang="lsl2">// Touch the object with this script in it to see the sine of random numbers! | ||
default | default | ||
{ | { | ||
| Line 18: | Line 18: | ||
llOwnerSay("The sine of " + (string)r + " in radians or " + (string)(r * RAD_TO_DEG) + " in degrees is " + (string)llSin(r)); | llOwnerSay("The sine of " + (string)r + " in radians or " + (string)(r * RAD_TO_DEG) + " in degrees is " + (string)llSin(r)); | ||
} | } | ||
}</ | }</source> | ||
|helpers | |helpers | ||
|also_functions= | |also_functions= | ||
Latest revision as of 15:11, 14 September 2015
| LSL Portal | Functions | Events | Types | Operators | Constants | Flow Control | Script Library | Categorized Library | Tutorials |
Summary
Function: float llSin( float theta );| 0 | Function ID |
| 0.0 | Forced Delay |
| 10.0 | Energy |
Returns a float that is the sine of theta.
| • float | theta | – | angle expressed in radians |
Caveats
Because of IEE754 on floats , llSin(PI) returns -8.742278E-8 ( hex : 0xB3BBBD2E ) and not 0.0 . The error is cumulative with multiples of PI : For instance llSin(100000.0*PI) = 0.015890 when the result should be 0.0
Examples
// Touch the object with this script in it to see the sine of random numbers!
default
{
touch_start(integer num)
{
float r = llFrand(TWO_PI);
llOwnerSay("The sine of " + (string)r + " in radians or " + (string)(r * RAD_TO_DEG) + " in degrees is " + (string)llSin(r));
}
}