Technical Support Files

File sizes are listed at the end of file descriptions, along with the version of Mathcad required. Note that older-version files can be read with newer versions of Mathcad and that Mathcad 3.1 files can be read with either the Macintosh or Windows Mathcad 3.1.

If you are using the MathSoft Mathbrowser, you'll be able to view most of the following Mathcad files directly (up through Mathcad 5.0). If you are using another Web browser, note that links will take you to the ASCII readout of Mathcad files unless you have configured your browser to use Mathcad as a viewer/helper application. For information about how to do this, look here.

Note: some additional Mathcad files are included on the page Technical Support Helpful Hints which you may also find to be useful.

Technical

1. Two-dimensional spline interpolation; how to use Mathcad's spline functions ( 2dinterp.mcd, Mathcad 3.1, 7 kb)
2. X-Y plotting: multiple x and y ranges, markers, etc. ( 2dplot.mcd, Mathcad 3.1, 7 kb)
3. Surface, contour and parametric plots ( 3dplot.mcd, Mathcad 3.1, 7 kb)
4. Converts decimal to binary numbers ( binary.mcd, Mathcad 3.1, 5 kb)
5. How to swap data between Mathcad and Excel ( dde.mcd, Mathcad 3.1, 146 kb)
6. Examples of using FFTs in Mathcad ( ffts.mcd, Mathcad 3.1, 30 kb)
7. A variety of fits to a data set: least squares, polynomial ( fitting.mcd, Mathcad 3.1, 13 kb)
8. How to use linfit and genfit in Mathcad 5.0 ( fit50.mcd, Mathcad 5.0, 6 kb)
9. Find the greatest common denominator and least common multiple ( gcdlcm.mcd, Mathcad 3.1, 11 kb)
10. How to do linear and spline interpolation ( interp.mcd, Mathcad 3.1, 5 kb)
11. Multiple intersection points of two functions ( intersec.mcd, Mathcad 3.1, 5 kb)
12. Linear regression analysis in Mathcad ( linreg.mcd, Mathcad 3.1, 22 kb)
13. A method of looping iteration in Mathcad ( loop.mcd, Mathcad 3.1, 9 kb)
14. LU decomposition of matrices ** ( ludecomp.mcd, Mathcad 3.1, 6 kb)
15. Conversion between matrices and arrays, either direction ( matarray.mcd, Mathcad 3.1, 7 kb)
16. Moving averages in Mathcad ( moveavg.mcd, Mathcad 3.1, 5 kb)
17. Making pie charts using polar plots ( pie.mcd, Mathcad 4.0, 4 kb)
18. Find all complex roots of a polynomial ** ( polroot.mcd, Mathcad 3.1, 7 kb)
19. Several forms of the Runge Kutta method for differential equations ** ( runge.mcd, Mathcad 3.1, 11 kb)
20. Examples of root finding functions in Mathcad ( roots.mcd, Mathcad 3.1, 9 kb)
21. Solve blocks used to find multiple solutions to systems of simultaneous equations ( solvbloc.mcd, Mathcad 3.1, 15 kb)
22. Find the tangent and the normal to a function ( tannorm.mcd, Mathcad 3.1, 5 kb)
23. Table lookup using vectors ( tablook.mcd, Mathcad 3.1, 5 kb)
24. How to fix a reverse-video "undefined" error ( undefine.mcd, Mathcad 3.1, 6 kb)