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.