So briefly I an also do color bar let me use a more sophisticated command if we just see A color bar, color Map gray this is actually running three commands at a time, running every emesher FC, then running color bar, then color map gray and what this does, is it sets the color po, map, it's a gray color map, and under writed also puts it in this colo r bar and, So this color bar shows what the different shades of color correspond to, curan frequently, the upper left elements of, the A matrix is seventeen, and so, you know, that corresponds to. 