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LSL Wiki : llCeil

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integer llCeil(float val);

Returns the smallest integer value >= val (rounds up).

The usage of these functions can be tricky. For examples of potential issues see llFrand.

Compare with llFloor and llRound.


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Functions | Math
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Um... whats the use of this?
-- ChristopherOmega (2004-01-15 16:18:06)
Rounds up.
-- GuzarFonzarelli (2004-01-18 11:15:47)
Be careful that the value you pass to this function is a float, not an integer. For example, llCeil(1/4) returns 0, while llCeil(1.0/4.0) returns 1. That's because 1 / 4 = 0 in integer math, and llCeil(0) is 0.
-- GunzourYellowknife (2004-06-28 12:08:21)
This is also very useful for llFrand, since that returns 0.0 < x <= MAX (instead of the usual 0.0 <= x < MAX). use llCeil for this to properly convert x into an integer.
-- NeoRebus (2004-07-07 15:46:06)
Erm, neo..... llFrand(MAX) returns 0.0 <= x < MAX. Also llCeil wouldn't help you get anything closer to 0.0 <= x < MAX if it actually did return 0.0 < x <= MAX.

However your surrounding premise is I think correct since llCeil(llFrand(MAX)) will return an integer from 1 to MAX ( 0 < X <= MAX ).
-- AmaOmega (2004-07-10 01:18:41)
Um, how come the llFrand page says it returns (0.0 < return value <= max) then?
-- PrioSerpentine (2004-07-10 08:27:01)
Because it is wrong would be my guess. :)
-- AmaOmega (2004-07-10 23:07:08)
Looks to me like this function returns the smallest integer value > than the value, as opposed to >= the value.
-- 206.12.10.243 (2007-12-10 18:55:21)
I take it back... Disregard the last comment. Further testing has proven me wrong.
-- 206.12.10.243 (2007-12-11 17:41:03)
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