dmsToRadians( deg, min, sec )
In conversions of this type, one has to be careful to get the
sign right in converting angles which are between 0 and -1 degrees.
This routine uses the sign bit of the deg
argument,
taking care to distinguish between +0 and -0 (their internal
representations are different for floating point values).
It is illegal for the min
or sec
arguments
to be negative.
deg
(floating point)min
(floating point)sec
(floating point)double dmsToRadians(double, double, double)