**

# File lib/matrix.rb, line 938
    def ** (other)
      case other
      when Numeric
        Scalar.new(@value ** other)
      when Vector
        Scalar.Raise WrongArgType, other.class, "Numeric or Scalar or Matrix"
      when Matrix
        other.powered_by(self)
      else
        x, y = other.coerce(self)
        x ** y
      end
    end