public Complex geometricMean_as_Complex() {
		Complex gmean = Complex.zero();
		switch (type) {
		case 1:
		case 12:
		case 14:
			Complex[] cc = this.getArray_as_Complex();
			gmean = Stat.geometricMean(cc);
			break;
		default:
			throw new IllegalArgumentException("This type number, " + type + ", should not be possible here!!!!");
		}
		return gmean;
	}