DEGraph DiffEq graphing utility for the TI-89/92+ Version 1.01 Author: Bhuvanesh Bhatt (bbhatt1@towson.edu) Last updated: January 2nd, 2001 Description: degraph(diffeq,x,y) prepares diffeq (with independent var x and dependent var y) for graphing and ends on the Y= editor, so that you can select the solution curves to be plotted and enter initial conditions. After this, press [APPS][4:Graph] to see the graph. degraph() uses the same input syntax (y, y', y'', ...) as deSolve(). Before using degraph(), save y1', y2', ... if necessary. RepChars(chars,ntimes) is included as an auxiliary function. History: * v1.01: Simple update that changes the order of the independent and dependent variables to be consistent with deSolve() * v1.00: Initial release Copyright: You may distribute this package in an unmodified form as long as you include this documentation and do not receive monetary profit. Comments/questions/suggestions are welcomed at bbhatt1@towson.edu