> 'Snot what I said. > 1/3 is a precise representation, 0.3333 isn't > PI works, 3.141... isn't precise. Full circle!!! :-) This is where this topic started. Pi to 4 significant figures / 2 decimal places should be 3.142 as hammered out in brain burp rounding. (But I know you knew that and it wasn't the point you were making) Quite coincidentally, Pi for most any engineering purpose is 355/113 High by about 0.00000026676... Easy to remember 113355 and split it in two and divide. Courtesy HP long ago. Russell McMahon -- http://www.piclist.com#nomail Going offline? Don't AutoReply us! email listserv@mitvma.mit.edu with SET PICList DIGEST in the body