code: public void convertTo( DMatrixRMaj m ) {
  		if( m.getNumElements() != 27 )
  			throw new IllegalArgumentException("Input matrix/vector must have 27 elements");
  
  		for( int i = 0; i < 9; i++ ) {
  			m.data[i] = T1.data[i];
  			m.data[i+9] = T2.data[i];
  			m.data[i+18] = T3.data[i];
  		}
  	}
docs: <p>
  Converts this matrix formated trifocal into a 27 element vector:<br>
  m.data[ i*9 + j*3 + k ] = T_i(j,k)
  </p>
  
  @param m Output: Trifocal tensor encoded in a vector