method

cosh

v1_9_3_125 - Show latest stable - 0 notes - Class: CMath

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cosh(z) public

returns the hyperbolic cosine of z, where z is given in radians

# File lib/cmath.rb, line 214
  def cosh(z)
    begin
      if z.real?
        cosh!(z)
      else
        Complex(cosh!(z.real) * cos!(z.imag),
                sinh!(z.real) * sin!(z.imag))
      end
    rescue NoMethodError
      handle_no_method_error
    end
  end

cosh

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