FUNCTION ScalProd3DStand : LREAL
This function will calculate the cosine of the angle being drawn by two input vectors 
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InOut:
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Scope
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Name
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Type
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Comment
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Return
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ScalProd3DStand
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LREAL
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If one of the input vector equals the null vector, 0 will be returned.
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Input
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pv1
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POINTER TO Vector3d
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Pointer to input vector 
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pv2
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POINTER TO Vector3d
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Pointer to input vector 
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