Experiments with MATLAB is an electronic book with chapters that supplement high school and early college courses in mathematics and technical computing, including calculus and matrix theory. The expected background includes algebra, trigonometry, and some familiarity with computers.
This app includes 20 interactive applications from the book which help readers explore a wide range of mathematical concepts through interesting applications.
The entire textbook and additional supporting code is available for free download:
orbits.m calls upon zoomer and tracer but does so through callbacks specified as strings, but those kinds of callbacks are executed from the base workspace and do not know about functions whose source is given in the same file. The fix is to switch to function handles. Change lines 214 to 219 to become