From: "James R. Phillips" Newsgroups: comp.os.msdos.djgpp Subject: Re: allegro for "scientific" programming? Date: Sat, 24 May 1997 07:48:52 +0900 Organization: FredNet - Frederick, Md. Lines: 15 Message-ID: <33861ED4.580E@japan.co.jp> References: <337D25A1 DOT 71BB AT primenet DOT com> NNTP-Posting-Host: 202.217.205.131 Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit To: djgpp AT delorie DOT com DJ-Gateway: from newsgroup comp.os.msdos.djgpp Precedence: bulk Well, I wrote a multiple regression program for 3D XYZ data sets, and used Allegro to plot and rotate the polynomial surfaces with the 3D XYZ data sets on them. Rotates and zooms in/out really fast. Right now I'm using z-depth sorting out of laziness, but will switch to the painter's algorithm in the future. I used the NEWMAT09 matrix library's QR triangularization routines to solve the linear equation matrices, it is an excellent matrix library. You can select and de-select any polynomial coefficients for the fitting with the handy-dandy Allegro dialog controls, this makes the fitting interactive and is really great to use. Not finished yet, probably will tinker with this for years. At least I hope so... Randy Phillips Senior Engineer Honeywell Measurex Japan, Tokyo