Texas Instruments TI-89 User Manual - Page 452
If You Use the Table Screen to View Differential Equations, only the selected equations
UPC - 033317196326
View all Texas Instruments TI-89 manuals
Add to My Manuals
Save this manual to your list of manuals |
Page 452 highlights
With custom axes If X Axis is not t, you must enter at least one initial condition for each equation in the Y= Editor (whether the equation is selected or not). Otherwise, a Diff Eq setup error occurs when you graph. In the Graph screen Notes If no curve is graphed, set an initial condition. If you did enter initial conditions in the Y= Editor, select ZoomFit: @ „jA A 1st-order equation may look different with FLDOFF than with SLPFLD. This is because FLDOFF uses the tplot and tmax Window variables (page 9), which are ignored with SLPFLD. For 1st-order equations, use FLDOFF and Axes = Custom to plot axes that are not possible with SLPFLD. For example, you can plot t vs. y1' (where SLPFLD plots t vs. y1). If you enter mulNotele 1st-order equations, you can plot one equation or its solution vs. another by specifying them as the axes. If You Use the Table Screen to View Differential Equations You can use the Table screen to view the points for a differential equation graph. However, the table may show different equations than those graphed. The table shows only the selected equations, regardless of whether those equations will be plotted with your current Fields and Axes settings Differential Equation Graphing 452