public Method

Math.atan(z)

Source
Home > Ruby > Ruby > Standard Library > Math > atan

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Source Code

# File complex.rb, line 550
def atan(z)
  if Complex.generic?(z)
    atan!(z)
  else
    1.0.im * log( (1.0.im+z) / (1.0.im-z) ) / 2.0
  end
end
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