Hi Thank you for taking a look at MTRXCALC application (matrix algebra with a calculator interface ). Last minute changes would be reported here but all the files should be up to date. If have access to this file you or someone else unzipped file MTCALC10.ZIP(Win32s) or MTC32B10.ZIP(32BitWin). To set up the MTRXCALC application is easy once you have the correct file. Look for a file with file name MTRXCALC.ZIP. This is a compressed file that contains the files that the application file MTRXCALC.EXE needs to execute properly. 1) Create a new directory on your hard drive and copy MTRXCALC.ZIP to this directory. 2) Unzip the copied file in this new directory. This should expand into the following four files MTRXCALC.EXE MTRXCALC.HLP NEW.MAT EXMP1.MAT 3) Run MTRXCALC.EXE and the application starts. 4) Please see the help topic 'Getting Started' before you begin. PLEASE NOTE! This is a 32-bit IMB PC-Compatible (Intel processor) program and requires Win32s, Windows NT, or Windows 95. To run this on Windows 3.1 or Windows For Workgroups 3.11 requires the freely distributed WIN32s files. These files may already be on your system but if not they can be downloaded from the Microsoft Library or copied from any source handy.