Graphmatica, version 3.50b ========================== by Keith Hertzer - Copyright (c) 1996 kSoft, Inc. Saturday 07 December 1996 Files in this archive: ---------------------- README.TXT 6,414 12/07/96 --- this file GRAPHMAT.EXE 199,586 12/07/96 --- program file GRAPHMAT.DOC 119,939 12/07/96 --- documentation/manual REGISTER.TXT 2,566 12/07/96 --- mail-in registration form GRMAT1.HLP 22,294 8/07/95 \ GRMAT2.HLP 5,890 8/07/95 | GRMAT3.HLP 6,734 8/07/95 | GRMAT4.HLP 4,111 8/07/95 |- on-line help files GRMAT5.HLP 2,775 8/07/95 | GRMAT6.HLP 3,899 8/07/95 | GRMAT7.HLP 4,851 8/07/95 / DIFEQ.GR 592 8/07/95 \ GRAPHMAT.GR 1,188 8/07/95 | INEQUAL.GR 297 8/07/95 | LOGLOG.GR 270 8/07/95 |_ demonstration equation ODE2.GR 474 8/07/95 | list files POLAR.GR 383 8/07/95 | TRIG.GR 432 8/07/95 | XYDEMO.GR 439 8/07/95 / Installing Graphmatica: ----------------------- To be able to use the on-line help facility, you should place the six .HLP files on the same disk and directory as the executable file. Then, before you run Graphmatica, change the current drive/directory to where those files are. For example, to install Graphmatica from the disk in drive A: to some directory C:\GRAPHICS, you would type: C:\>copy a:graphmat.* c:\graphics C:\>copy a:grmat?.* c:\graphics C:\>copy a:*.gr c:\graphics and to run the program, you would type: C:\>cd c:\graphics C:\GRAPHICS>graphmat Notes: ------ Please do not edit any of the files GRMAT*.HLP. They are formatted especially for use under the Graphmatica help view function, broken up into screens of 23 lines. Altering these files may result in abnormal page breaks and prevent effective use of the online help. What's new in version 3.50b: ---------------------------- Added new checking to prevent floating point errors drawing ODEs that go off screen very steeply. What's new in version 3.50a: ---------------------------- The following bugs in version 3.50 were fixed: 1. tanh function incorrectly produced "10^x" 2. Functions which are not always positive could cause fatal floating point errors when graphed with logarithmic graph paper. In addition, I have added routines to trap floating point errors in all calculations for graphs and drawing graph paper. This should virtually eliminate the possiblity of crashes due to really complex equations or really huge or small grid ranges. For a complete list of what's new in version 3.5, see Appendix C of GRAPHMAT.DOC. Registering: ------------ For a fee of $25, you can register Graphmatica. Registered users can use the program indefinitely guilt-free, and will receive a disk with the next major version on it when it is released, as well as notification of future upgrades in perpetuity. Site licenses and special student bulk licensing plans are available. Site license fees are $85 for the first 10 copies plus $2.50 for each additional copy. I can accept purchase orders for transactions over $100, but otherwise please try to write me a check. Please contact me if you are interested for more information. To register, print out and send in the form found in REGISTER.TXT (also found at the end of GRAPHMAT.DOC). Or you can register using CompuServe's Shareware Registration Database ("GO SWREG"). Request program #111. Read Appendix D in the manual for information about Shareware. CREDIT CARD ORDERS ONLY - You can order with MC, Visa, Amex, or Discover from Public (software) Library by calling 1-800-2424-PsL or 1-713-524-6394 or by FAX to 1-713-524-6398 or by CIS Email to 71355,470. You can also mail credit card orders to PsL at P.O.Box 35705, Houston, TX 77235-5705. The item number for Graphmatica is #14133. PsL operators are available from 7:00 a.m. to 6:00 p.m. CST Monday-Thursday and 7:00 a.m. to 12:30 p.m. on Friday. THE ABOVE NUMBERS ARE FOR CREDIT CARD ORDERS ONLY. THE AUTHOR OF THIS PROGRAM CANNOT BE REACHED AT THESE NUMBERS. Any questions about the status of the shipment of the order, refunds, registration options, product details, technical support, volume discounts, dealer pricing, site licenses, non-credit card orders, etc, must be directed to kSoft at the address on the registration form To insure that you get the latest version, PsL will notify me the day of your order and I will ship the product directly to you. I am required by my contract with PsL to ship you a disk immediately regardless of whether you have the current version already. Therefore, if you order through PsL, you will receive the most current version right away, as well as an upgrade to the next major release. To help defray the additional costs, you will be charged an extra $2.50 in the U.S. and Canada ($5 outside North America) for handling. How to get the latest version: ------------------------------ The latest version of Graphmatica for DOS and Windows will always be available on CompuServe and on FTP sites on the Internet. On CompuServe, GO SCIENCE to enter the math & science forum and look in library 5 (mathematics) for GRMxxD.ZIP (DOS) or GRMxxW.ZIP (Windows), where xx will be the latest version number. On the internet, use FTP or gopher to access archives.math.utk.edu and look in the software/msdos/graphing/grmat directory for the latest versions. The Windows version is also available at the CICA archives (ftp.cica.indiana.edu) in the win3/util directory. Both of these sites are mirrored at a number of places, including wuarchive.wustl.edu. How to contact me: ------------------ You can always send me e-mail at 70711,2071 on CompuServe. On the internet, send mail to khertz@pacbell.net or see my WWW page at http://server.berkeley.edu/~khertz/ksoft/ksoft.html I do NOT provide telephone support. Please don't try to get my number through directory assistance, as you will probably just bother my parents. Worst comes to worst, you can write me a letter and mail it to the address below. I promise I will respond to it, although I can't guarantee how long it will take. kSoft, Inc., 345 Montecillo Dr., Walnut Creek, CA 94595-2613.