vectorCos

1.22

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Description

Description:

Cosine of angle between two 3D vectors.

Groups:

Uncategorised

Syntax

Syntax:

vector1 vectorCos vector2

Parameters:

vector1: Array

vector2: Array

Return Value:

Number

Examples

Example 1:

_cos = getPos player vectorCos [0,0,2];

Additional Information

See also:

vectorAddvectorDiffvectorCrossProductvectorDotProductvectorMagnitudevectorMagnitudeSqrvectorMultiplyvectorDistancevectorDistanceSqrvectorDirvectorUpsetVectorDirsetVectorUpsetVectorDirAndUpvectorNormalizedvectorFromTomatrixMultiplymatrixTranspose

Notes

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Notes

Posted on 28 Jun, 2014

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(ArmA3 1.22)Algorithm: Vector1 = [x1,y1,z1]; Vector2 = [x2,y2,z2]; Result = ((x1 * x2) + (y1 * y2) + (z1 * z2))/((sqrt (x1 ^ 2 + y1 ^ 2 + z1 ^ 2))*(sqrt (x2 ^ 2 + y2 ^ 2 + z2 ^ 2))) Given two vectors of attributes, A and B, the cosine similarity, cos(θ), is represented using a dot product and magnitude. The resulting similarity values indicating intermediate similarity or dissimilarity between two vectors.