SLA_SEPV

Angle Between 2 Vectors

ACTION:
Angle between two vectors (single precision).
CALL:
R = sla_SEPV (V1, V2)
GIVEN:

V1

R(3)

first vector

V2

R(3)

second vector


RETURNED:

sla_SEPV

R

angle between V1 and V2 in radians


NOTES:
(1)
There is no requirement for either vector to be of unit length.
(2)
If either vector is null, zero is returned.
(3)
The result is always positive.