
Convert degrees to radians (and back again).
DegToRad(deg)
RadToDeg(rad)
a vector of angles in degrees.
a vector of angles in radians.
DegToRad returns a vector of the same length as deg
with the angles in radians.
RadToDeg returns a vector of the same length as rad
with the angles in degrees.
# NOT RUN {
DegToRad(c(90,180,270))
RadToDeg( c(0.5,1,2) * pi)
# }
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