docs: public void extractFundmental( DMatrixRMaj F21 , DMatrixRMaj F31 ) {
  		// compute the camera matrices one column at a time
  		for( int i = 0; i < 3; i++ ) {
  			DMatrixRMaj T = tensor.getT(i);
  
  
  			GeometryMath_F64.mult(T,e3,temp0);
  			GeometryMath_F64.cross(e2,temp0,column);
  
  			F21.set(0,i,column.x);
  			F21.set(1,i,column.y);
  			F21.set(2,i,column.z);
  
  			GeometryMath_F64.multTran(T,e2,temp0);
  			GeometryMath_F64.cross(e3,temp0,column);
  
  			F31.set(0,i,column.x);
  			F31.set(1,i,column.y);
  			F31.set(2,i,column.z);
  		}
  	}