method

asinh

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asinh(z) private

returns the inverse hyperbolic sine of z

# File lib/cmath.rb, line 300
  def asinh(z)
    begin
      if z.real?
        asinh!(z)
      else
        log(z + sqrt(1.0 + z * z))
      end
    rescue NoMethodError
      handle_no_method_error
    end
  end

asinh

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