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SLA_DRANGE - Put Angle into Range $\pm \pi$

ACTION:
Normalize an angle into the range $\pm \pi$ (double precision).
CALL:
D = sla_DRANGE (ANGLE)

GIVEN:

ANGLE D angle in radians

RETURNED:

sla_DRANGE D ANGLE expressed in the range $\pm \pi$.


next up previous
Next: SLA_DRANRM - Put Angle into Range
Up: SUBPROGRAM SPECIFICATIONS
Previous: SLA_DR2TF - Radians to Hour,Min,Sec,Frac

SLALIB --- Positional Astronomy Library
Starlink User Note 67
P. T. Wallace
12 October 1999
E-mail:ptw@star.rl.ac.uk