**TI83F* Program file 01/11/07, 10:58“ ‚RECTS‚€ÝA+B+N+T?…?©^?Ø?BqAƒNH?0S?1J?Ö1?ApJq1‚HU?UpT‚HX?œU+0+U+^?œU+^+UpH+^?œUpH+^+UpH+0?SpH‚^S?ÚJ+N?×1?Ø?Þ*SUM*?ÞS?)