Difference between revisions of "LlRound"

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{{LSLFunctionAll
{{LSL_Function
|func=llRound
|func=llRound|sort=Round
|func_id=11
|func_id=11|func_sleep=0.0|func_energy=10.0
|func_sleep=0.0
|func_footnote=If the absolute value of the tenths position is 4 or less, {{LSLP|val}} is rounded off; otherwise, {{LSLP|val}} is rounded towards positive infinity.
|func_energy=10.0
|p1_type=float|p1_name=val|p1_desc=Any valid float value
|func_footnote=If the absolute value of the tenths position is 4 or less, val is rounded off; otherwise, val is rounded towards infinity of like signedness of val.
|return_type=integer
|p1_type=float
|Return_text=that {{LSLP|val}} is closest to.
|p1_name=val
|p1_desc=Any valid float value
|p2_type|p2_name|p2_desc
|p3_type|p3_name|p3_desc
|p4_type|p4_name|p4_desc
|p5_type|p5_name|p5_desc
|p6_type|p6_name|p6_desc
|p7_type|p7_name|p7_desc
|p8_type|p8_name|p8_desc
|p9_type|p9_name|p9_desc
|p10_type|p10_name|p10_desc
|p11_type|p11_name|p11_desc
|p12_type|p12_name|p12_desc
|return_type=float
|return_text=that is the integer value of val rounded towards zero by traditional numeric rounding.
|spec
|spec
|caveats
|caveats=
|examples=
* The returned value is -2147483648 (0x80000000) if the arithmetic result is outside of the range of valid integers (-2147483648 to 2147483647 inclusive).
<lsl>
|constants
default {
|examples=<source lang="lsl2">default
{
   state_entry()
   state_entry()
   {
   {
       llSay(0,"The rounded value of -4.5 is: "+(string)llRound(-4.5) );
       llSay(0, "The rounded value of -4.9 is: "+(string)llRound(-4.9) );
  }
      //Returns "The rounded value of -4.9 is: -5"
}
     
</lsl>
      llSay(0,  "The rounded value of -4.1 is: "+(string)llRound(-4.1) );
      //Returns "The rounded value of -4.1 is: -4"
     
      llSay(0,  "The rounded value of 4.5 is: "+(string)llRound(4.5) );
      //Returns "The rounded value of 4.5 is: 5"
     
      llSay(0,  "The rounded value of 4.9 is: "+(string)llRound(4.9) );
      //Returns "The rounded value of 4.9 is: 5"
     
      llSay(0,  "The rounded value of 4.1 is: "+(string)llRound(4.1) );
      //Returns "The rounded value of 4.1 is: 4"
 
      llSay(0,  "The rounded value of -4.5 is: "+(string)llRound(-4.5) );
      //Returns "The rounded value of -4.5 is: -4"
    }
}</source>
|helpers
|helpers
|also_functions=
|also_functions={{LSL DefineRow||[[llCeil]]|Rounds the float to an integer towards positive infinity}}
*{{LSLG|llCeil}}
{{LSL DefineRow||[[llFloor]]|Rounds the float to an integer towards negative infinity}}
*{{LSLG|llFloor}}
|also_events
|also_articles
|also_tests
|notes
|notes
|permission
|negative_index
|cat1=Math
|cat2
|cat3
|cat4
}}
}}
[[Category:LSL_Functions]]
[[Category:LSL_Math]]

Revision as of 14:40, 22 January 2015

Summary

Function: integer llRound( float val );

Returns the integer that val is closest to.

• float val Any valid float value

If the absolute value of the tenths position is 4 or less, val is rounded off; otherwise, val is rounded towards positive infinity.

Caveats

  • The returned value is -2147483648 (0x80000000) if the arithmetic result is outside of the range of valid integers (-2147483648 to 2147483647 inclusive).
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Examples

default
{
   state_entry()
   {  
       llSay(0,  "The rounded value of -4.9 is: "+(string)llRound(-4.9) );
       //Returns "The rounded value of -4.9 is: -5"
       
       llSay(0,  "The rounded value of -4.1 is: "+(string)llRound(-4.1) );
       //Returns "The rounded value of -4.1 is: -4"
       
       llSay(0,  "The rounded value of 4.5 is: "+(string)llRound(4.5) );
       //Returns "The rounded value of 4.5 is: 5"
       
       llSay(0,  "The rounded value of 4.9 is: "+(string)llRound(4.9) );
       //Returns "The rounded value of 4.9 is: 5"
       
       llSay(0,  "The rounded value of 4.1 is: "+(string)llRound(4.1) );
       //Returns "The rounded value of 4.1 is: 4"

       llSay(0,  "The rounded value of -4.5 is: "+(string)llRound(-4.5) );
       //Returns "The rounded value of -4.5 is: -4"
    }
}

See Also

Functions

•  llCeil Rounds the float to an integer towards positive infinity
•  llFloor Rounds the float to an integer towards negative infinity

Deep Notes

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Signature

function integer llRound( float val );