/* With this change, Java runs the benchmark as fast as Factor. */
	static int pixel(Complex c)
	{
		double zr = 0.0, zi = 0.0;
		for(int i = maxIterations; i >= 0; i--)
		{
			double zzr = zr * zr - zi * zi;
			double zzi = zr * zi * 2;
			zr = zzr + c.real;
			zi = zzi + c.imag;
			if(zr * zr + zi * zi >= 4.0)
				return i;
		}

		return -1;
	}