From: "Richard Birch" Newsgroups: comp.os.msdos.djgpp Subject: A useful class I made for producing formulas Date: 28 Jul 1997 00:04:08 GMT Organization: UUNET Lines: 18 Message-ID: <01bc9ae9$7bc81960$32f282c1@damien> NNTP-Posting-Host: ac050.du.pipex.com To: djgpp AT delorie DOT com DJ-Gateway: from newsgroup comp.os.msdos.djgpp Precedence: bulk Anyone interested in a class that gives you a formula when you give it a set of results. e.g. give it x=1 when y=1, x=2 when y=4, x=3 when y=9, the class will give you the formula y=x^2. That was a VERY simple example - it will work given *any* real numbers, and produces formulas up to the order of 50. It uses Shawn Hargreaves' ALLEGRO for graphics manipulation so it needs that to compile. It produces the formula using simultaneous equations. Other functions are: - drawing the graph of the formula on the screen or to a bitmap - setting the scale, axis etc to your needs - giving a y result given an x by running x through the formula If *anyone* is interested, e-mail me and I'll reply attaching the source code (one 16KB header). I'm quite proud of this as this is the only code of this nature I know of, and would be pleased to receive ideas for improvement.