SLA_SEPV
Angle Between 2 Vectors
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ACTION:
- Angle between two vectors (single precision).
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CALL:
R = sla_SEPV (V1, V2)
GIVEN:
| V1 | R(3) | first vector |
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| V2 | R(3) | second vector |
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RETURNED:
| sla_SEPV | R | angle between V1 and V2 in radians |
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NOTES:
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(1)
- There is no requirement for either vector to be of unit length.
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(2)
- If either vector is null, zero is returned.
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(3)
- The result is always positive.