method

**

v1_8_7_72 - Show latest stable - 0 notes - Class: Complex

**(other) public

Raise this complex number to the given (real or complex) power.

# File lib/complex.rb, line 206
  def ** (other)
    if other == 0
      return Complex(1)
    end
    if other.kind_of?(Complex)
      r, theta = polar
      ore = other.real
      oim = other.image
      nr = Math.exp!(ore*Math.log!(r) - oim * theta)
      ntheta = theta*ore + oim*Math.log!(r)
      Complex.polar(nr, ntheta)
    elsif other.kind_of?(Integer)
      if other > 0
        x = self
        z = x
        n = other - 1
        while n != 0
          while (div, mod = n.divmod(2)
                 mod == 0)
            x = Complex(x.real*x.real - x.image*x.image, 2*x.real*x.image)
            n = div
          end
          z *= x
          n -= 1
        end
        z
      else
        if defined? Rational
          (Rational(1) / self) ** -other
        else
          self ** Float(other)
        end
      end
    elsif Complex.generic?(other)
      r, theta = polar
      Complex.polar(r**other, theta*other)
    else
      x, y = other.coerce(self)
      x**y
    end
  end

**

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