/ Ruby
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method

atanh

ruby latest stable - Class: Math

Method deprecated or moved

This method is deprecated or moved on the latest stable version. The last existing version (v1_8_7_330) is shown here.

atanh(z)
public

No documentation available.

# File lib/complex.rb, line 610
  def atanh(z)
    if Complex.generic?(z) and z >= -1 and z <= 1
      atanh!(z)
    else
      log( (1.0+z) / (1.0-z) ) / 2.0
    end
  end