docs: public static void multiplyRealComplex( GrayF realA ,
  											ImageInterleaved complexB , ImageInterleaved complexC ) {
  		if( complexB instanceof InterleavedF32 ) {
  			DiscreteFourierTransformOps.multiplyRealComplex((GrayF32) realA, (InterleavedF32) complexB, (InterleavedF32) complexC);
  		} else if( complexB instanceof InterleavedF64 ) {
  			DiscreteFourierTransformOps.multiplyRealComplex((GrayF64) realA, (InterleavedF64) complexB, (InterleavedF64) complexC);
  		} else {
  			throw new IllegalArgumentException("Unknown image type");
  		}
  	}