docs: public void complexInverse(float[] a, int offa, boolean scale) {
  		if (n == 1)
  			return;
  		switch (plan) {
  			case SPLIT_RADIX:
  				cftfsub(2 * n, a, offa, ip, nw, w);
  				break;
  			case MIXED_RADIX:
  				cfftf(a, offa, +1);
  				break;
  			case BLUESTEIN:
  				bluestein_complex(a, offa, 1);
  				break;
  		}
  		if (scale) {
  			scale(n, a, offa, true);
  		}
  	}