integer llCeil(float fval)

Round a float to the closest integer greater than or equal to it.

The float value to be rounded up.

Returns the float value that is the nearest integer greater or equal to fval.

• The function returns -2147483648 (Hex. 80000000) for float values of 2147483648.0 or bigger, or less than -2147483648.0.

integer i;
i = llCeil(3.0);    // i will become 3, which is greater or equal to 3.0 (in this case, equal).
i = llCeil(3.001);  // i will become 4, not 3, because 3 is less than 3.001 and the result must be greater or equal.
i = llCeil(3.999);  // i will become 4
i = llCeil(4.0);    // i will become 4
i = llCeil(-3.0);   // i will become -3
i = llCeil(-3.001); // i will become -3, which is greater than -3.001
i = llCeil(-3.999); // i will become -3
i = llCeil(-4.0);   // i will become -4

• llRound rounds to nearest integer.
• llFloor rounds always towards negative infinity (e.g. 1.1 is rounded down to 1.0 and -1.1 is rounded down to -2.0).
• float type and associated caveats and limitations.