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revert to multiplication for radian-degree conversion #4114

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Aug 20, 2013
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revert to multiplication for radian-degree conversion #4114

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9 changes: 2 additions & 7 deletions base/math.jl
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Original file line number Diff line number Diff line change
Expand Up @@ -41,13 +41,8 @@ cosc(x::Integer) = cosc(float(x))
cosc{T<:Integer}(x::Complex{T}) = cosc(complex(float(real(x)),float(imag(x))))
@vectorize_1arg Number cosc

const pideg1 = 0.017453292501159012 # pi/180 truncated to 29 significant bits
const pideg2 = 1.8784283451579438e-11 # pi/180 - pideg1
const degpi1 = 57.29577946662903 # 180/pi to 29 significant bits
const degpi2 = 4.645329255648566e-8 # 180/pi - degpi1

radians2degrees(z::Real) = oftype(z, degpi1*z + degpi2*z)
degrees2radians(z::Real) = oftype(z, pideg1*z + pideg2*z)
radians2degrees(z::Real) = oftype(z, 57.29577951308232*z)
degrees2radians(z::Real) = oftype(z, 0.017453292519943295*z)
radians2degrees(z::Integer) = radians2degrees(float(z))
degrees2radians(z::Integer) = degrees2radians(float(z))

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