The trial version of EASY-FIT^ModelDesign is available for free download. This trial version is identical to the full version of EASY-FIT^ModelDesign, but with data and model size restrictions. The trial version runs under Microsoft Windows XP or Vista, is fully documented by interactive, context-sensitive help and comes with 1,300 test examples. The trial version restrictions are removed using an activation key supplied at the time of purchase.

Technical support is available from the author of EASY-FIT^ModelDesign, Prof. Klaus Schittkowski through a Visual Numerics Forum dedicated to EASY-FIT^ModelDesign. For more questions about features, installation, numerical routines, you may also contact Professor Schittkowski at klaus.schittkowski@uni-bayreuth.de.

Download Instructions

Download EASYFIT.EXE into a temporary directory then execute the self-extracting file. Please see the Installation Notes below for additional installation considerations.

Trial version, Windows Vista or XP: EASYFIT.EXE (69.4 MB)

To get a trial version for Windows 2000 or earlier, please contact Prof. Klaus Schittkowski.

Installation Notes

• EASY-FIT^ModelDesign comes with the royalty-free run-time version of Microsoft Access 2007 and runs under Windows Vista or XP, respectively.

• If the language settings of your Windows system (Start -> Control Panel -> Regional Options) are different from a Western European language, e.g., Chinese, it might happen that EASY-FIT^ModelDesign stops with an error message. Please change the set up, preferably to US English.
   
• To replace an existing version of EASY-FIT^ModelDesign, please proceed as follows:
  1. Export all problems from the old version which you would like to save, into an auxiliary folder.
  2. It is recommended to save the database file EASY_FIT.MDE and all files problems\*.FUN, problems\*.FOR, respectively.
  3. Remove the old version (Start -> Settings -> Control Panel -> Add or Remove Programs).
  4. Delete the installation folder, e.g., C\:EASYFIT.
  5. Install the new version of EASY-FIT^ModelDesign and start the program.
  6. Import all problems exported according to Step 1 (File -> Import).