Math

Find numeric, random, statistical, and geometric operations.

Feature: Math

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integer llRound(float val)Returns val rounded to the nearest integer. Halfway values are rounded toward infinity.float llFrand(float mag)Returns a pseudo-random float in the range [0.0, mag) or (mag, 0.0] depending on the sign of mag. The value is inclusive of 0.0 but exclusive of mag.float llListStatistics(integer operation, list src)Returns the numeric result of the statistical aggregate function operation (a LIST_STAT_* constant) on the numeric list src.

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34 topic entries

• integer llAbs(integer val)function

  Returns the absolute (positive) integer value of val.

• float llAcos(float val)function

  Returns the arccosine of val in radians.

• float llAngleBetween(rotation start_rot, rotation end_rot)function

  Returns the angle, in radians, between rotations start_rot and and end_rot.

• float llAsin(float val)function

  Returns the arcsine of val in radians.

• float llAtan2(float y, float x)function

  Returns the arctangent of y/x in radians, using the signs to determine the quadrant. Note the argument order: Y is the first parameter, X is the second parameter.

• rotation llAxes2Rot(vector fwd, vector left, vector up)function

  Returns the rotation defined by the coordinate axes fwd, left, and up.

• rotation llAxisAngle2Rot(vector axis, float angle)function

  Returns the rotation that rotates angle radians around the axis vector.

• integer llCeil(float val)function

  Returns val rounded toward positive infinity. In other words, returns the smallest integer greater than or equal to val.

• float llCos(float theta)function

  Returns the cosine of theta. Theta is in radians.

• rotation llEuler2Rot(vector vec)function

  Returns the quaternion representation of the Euler angles (in radians) within vec.

• float llFabs(float val)function

  Returns the absolute (positive) value of val.

• integer llFloor(float val)function

  Returns val rounded toward negative infinity. In other words, returns the largest integer less than or equal to val.

• float llFrand(float mag)function

  Returns a pseudo-random float in the range [0.0, mag) or (mag, 0.0] depending on the sign of mag. The value is inclusive of 0.0 but exclusive of mag.

• vector llLinear2sRGB(vector color)function

  Returns a sRGB colorspace vector converted from the linear RGB colorspace argument.

• float llListStatistics(integer operation, list src)function

  Returns the numeric result of the statistical aggregate function operation (a LIST_STAT_* constant) on the numeric list src.

• float llLog(float val)function

  Returns natural (base e) logarithm of val. If negative, return 0.0.

• float llLog10(float val)function

  Returns base-10 (common) logarithm of val. If negative, return 0.0.

• integer llModPow(integer base, integer exponent, integer modulus)function

  Returns base raised to the power exponent, modulo modulus (i.e., (b^e)%m). All inputs are wrapped to unsigned 32-bit integer range [0..4294967295]. Output is wrapped to signed 32-bit integer range [-2147483648..2147483647]. Will never overflow, unlike (b^e), which can overflow to inf.

• float llPow(float base, float exponent)function

  Returns base raised to the power exponent. If result is imaginary, returns NaN.

• float llRot2Angle(rotation q)function

  Returns the angle, in radians, that q rotates.

• vector llRot2Axis(rotation q)function

  Returns the unit vector axis that q rotates around.

• vector llRot2Euler(rotation q)function

  Returns a vector of Euler angles (roll, pitch, yaw) of q. The angles will be in radians.

• vector llRot2Fwd(rotation q)function

  Returns the unit vector pointing toward positive X (forward) in the coordinate space of rotation q. Equivalent to <1, 0, 0> * q.

• vector llRot2Left(rotation q)function

  Returns the unit vector pointing toward positive Y (left) in the coordinate space of rotation q. Equivalent to <0, 1, 0> * q.

• vector llRot2Up(rotation q)function

  Returns the unit vector pointing toward positive Z (up) in the coordinate space of rotation q. Equivalent to <0, 0, 1> * q.

• rotation llRotBetween(vector start_vec, vector end_vec)function

  Returns the shortest-path quaternion that rotates start_vec onto end_vec.

• integer llRound(float val)function

  Returns val rounded to the nearest integer. Halfway values are rounded toward infinity.

• float llSin(float theta)function

  Returns the sine of theta. Theta is in radians.

• float llSqrt(float val)function

  Returns the square root of val. If negative, return NaN.

• float llTan(float theta)function

  Returns the tangent of theta. Theta is in radians.

• float llVecDist(vector vec_a, vector vec_b)function

  Returns a float representing the undirected, non-negative distance between vectors vec_a and vec_b.

• float llVecMag(vector vec)function

  Returns the magnitude (geometric length) of vec.

• vector llVecNorm(vector vec)function

  Returns the normalized unit vector pointing the same direction as vec. If <0, 0, 0>, return <0, 0, 0>.

• vector llsRGB2Linear(vector color)function

  Returns a linear RGB colorspace vector converted from the sRGB colorspace argument.