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SUBROUTINE sla_CS2C (A, B, V)
*+
* - - - - -
* C S 2 C
* - - - - -
*
* Spherical coordinates to direction cosines (single precision)
*
* Given:
* A,B real spherical coordinates in radians
* (RA,Dec), (Long,Lat) etc
*
* Returned:
* V real(3) x,y,z unit vector
*
* The spherical coordinates are longitude (+ve anticlockwise
* looking from the +ve latitude pole) and latitude. The
* Cartesian coordinates are right handed, with the x axis
* at zero longitude and latitude, and the z axis at the
* +ve latitude pole.
*
* P.T.Wallace Starlink October 1984
*
* Copyright (C) 1995 Rutherford Appleton Laboratory
*-
IMPLICIT NONE
REAL A,B,V(3)
REAL COSB
COSB=COS(B)
V(1)=COS(A)*COSB
V(2)=SIN(A)*COSB
V(3)=SIN(B)
END
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