Flowdock
method

atan

Importance_0
v1_8_7_330 - Show latest stable - 0 notes - Class: Math
atan(z) public

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# File lib/complex.rb, line 578
  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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