Application Guide

65 Graphs Application
Graphing Differential Equations
ODE entry line:
• y1 ODE identifier
• Expression k·y1 defines the relation
• Fields (1,1) for specifying initial condition
• Buttons for adding initial conditions and setting plot
parameters
Slider added for adjusting coefficient k of the ODE
Slope field
A solution curve passing through the initial condition
To Graph a Differential Equation:
1. In the Graphing view, tap Tools and go to GraphEntry/Edit > DiffEq.
The ODE is automatically assigned an identifier, such as “y1.”
2. Move to the relation field and enter the expression that defines the relation. For
example, you might enter -y1+0.1*y1*y2.