The third column looks proportional to the reciprocal of columns 1 (and 2). Roughly, 147000/column1. -- Rich -----Original Message----- From: math-fun-bounces+rschroe=sandia.gov@mailman.xmission.com [mailto:math-fun-bounces+rschroe=sandia.gov@mailman.xmission.com] On Behalf Of Russ Cox Sent: Thursday, April 27, 2006 6:41 PM To: math-fun@mailman.xmission.com Subject: [math-fun] code (This is a serial dump from a USB measurement device.) <clip>