The software available here are programs that I have written for Kwantlen Polytechnic University Physics labs.  The programs are "freeware" and are free; make as many copies as you wish.  The programs are also unsupported.  Send me an email if you encounter bugs but don't expect immediate fixes.  If you click on the program name you can download the file.  I hope you find these programs useful.
 

• TUTOR.EXE (215 kb)    Tutor is a DOS program that I wrote years ago.  It leads the user step by step through the elements of drawing and analyzing a straight line graph.
• wLineFit.exe (346 kb)    A graphing program that will work on Windows 3.1 and up.  Windows 3.1 must have Win32s installed.  Students enter their experimental data including the measurement  uncertainties.  The program plots the data on a graph.  Two sliders on either side of the graph allow the user to fit a best fit or extreme fit line to the data.  Students then can see how their best fit line compares to the linear regression result.  The program combines the "feel" of pen and paper graphing with the ease of computer data plotting.  The aim of the program is to help students develop an intuitive feeling for drawing a best fit line and for drawing extreme lines to the data for error analysis of slope and intercept.  Users can save data to disk.  But Cut and Paste between programs is absent.
• LineFit.txt (8 kb)   Instructions on using wLineFit.exe
• Samples.exe (51 kb)    A self-extracting Zip file containing 50 experimental data sets labelled Samplemm.grf.  We use these data sets for practise with wLineFit.  I suggest that you put this files in a subdirectory of the directory where you put wLineFit.  As well it is a good idea to use make these files read only.
• CurveFitting.xls (425 kb)    An Excel 97 workbook.  It has many of the features of wLineFit but with more types of fitting functions (exponential, logarithmic, quadratic, A/x + B, and A/x² + B).
• CurveFitting.txt (4 Kb)   A text file that explains how the toolbar in the workbook behaves.