## Resources

- Periodically forced pendulum. Another periodically forced pendulum.
- Matrix Calculator applet, from Robert Israel at the University of British Columbia.
- PPLANE java app for 2D systems (vector fields, trajectories, nullclines, manifolds, etc). From John Polking at Rice University.
- Virtual Computing Lab: remote use of various software (such as Excel, MATLAB, Maple, ..) from this NC State facility.
- Brief notes on using Excel to plot graphs and to do repetitive calculations.

Simple excel spreadsheet that does a repetitive calculation and plots the output.

See also Mr Excel page that uses formulas to set up a multiplication table. - Wikipedia article on screenshots: gives instructions on how to capture images of windows on your desktop.
- Slope Field Calculator. Java applet from Marek Rychlik, University of Arizona. Slope fields and numerical solution of one dimensional first order differential equations.
- Glossary of terms (jargon buster).