vectorCos: Difference between revisions
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m (Text replacement - "|gr1= Vectors|GROUP1=" to "|gr2= Math - Vectors |GROUP2=") |
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{{Command|Comments= | {{Command|Comments= | ||
| arma3 |Game name= | | arma3 |Game name= | ||
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|gr2= Math - Vectors |GROUP2= | |gr2= Math - Vectors |GROUP2= | ||
| Cosine of angle between two 3D vectors. |DESCRIPTION= | | Cosine of angle between two 3D vectors. |DESCRIPTION= | ||
| vector1 [[vectorCos]] vector2 |SYNTAX= | | vector1 [[vectorCos]] vector2 |SYNTAX= | ||
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| [[Number]] |RETURNVALUE= | | [[Number]] |RETURNVALUE= | ||
|x1= <code>_cos = [[getPos]] [[player]] [[vectorCos]] [0,0,2];</code> |EXAMPLE1= | |x1= <code>_cos = [[getPos]] [[player]] [[vectorCos]] [0,0,2];</code> |EXAMPLE1= | ||
| [[vectorAdd]], [[vectorDiff]], [[vectorCrossProduct]], [[vectorDotProduct]], [[vectorMagnitude]], [[vectorMagnitudeSqr]], [[vectorMultiply]], [[vectorDistance]], [[vectorDistanceSqr]], [[vectorDir]], [[vectorUp]], [[setVectorDir]], [[setVectorUp]], [[setVectorDirAndUp]], [[vectorNormalized]], [[vectorFromTo]], [[matrixMultiply]], [[matrixTranspose]] |SEEALSO= | | [[vectorAdd]], [[vectorDiff]], [[vectorCrossProduct]], [[vectorDotProduct]], [[vectorMagnitude]], [[vectorMagnitudeSqr]], [[vectorMultiply]], [[vectorDistance]], [[vectorDistanceSqr]], [[vectorDir]], [[vectorUp]], [[setVectorDir]], [[setVectorUp]], [[setVectorDirAndUp]], [[vectorNormalized]], [[vectorFromTo]], [[matrixMultiply]], [[matrixTranspose]] |SEEALSO= | ||
Revision as of 04:14, 17 January 2021
Description
- Description:
- Cosine of angle between two 3D vectors.
- Groups:
- Math - Vectors
Syntax
- Syntax:
- vector1 vectorCos vector2
- Parameters:
- vector1: Array - vector 3D or 2D (since Arma 3 v1.99.146539, z coordinate is defaulted to 0)
- vector2: Array - vector 3D or 2D (since Arma 3 v1.99.146539, z coordinate is defaulted to 0)
- Return Value:
- Number
Examples
Additional Information
- See also:
- vectorAddvectorDiffvectorCrossProductvectorDotProductvectorMagnitudevectorMagnitudeSqrvectorMultiplyvectorDistancevectorDistanceSqrvectorDirvectorUpsetVectorDirsetVectorUpsetVectorDirAndUpvectorNormalizedvectorFromTomatrixMultiplymatrixTranspose
Notes
-
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Notes
- Posted on 28 Jun, 2014
- ffur2007slx2_5
-
(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.