logo
Overview  First Applet  First Application   First Graph  First Project  Models  Loader  Keyframe  Linear Alg  Torus Knot  Picking  Camera Events  Color Selector  Slider  Ruler  Vector Field  Polygon Sets  Scalar Field   ODE  Root Finder  Parm Curve  Parm Surface  L-System  Texture  Refinement  4D Transform  Size Vertex  Size Polygon  Size Edge 

Type and Solve ODE's

Pick and drag new initial point in the viewer window. This modifies the initial x and y values. Initial values of higher derivative of y can be modified inside the text field Initial y.

Type a new differential equation. Whenever you type in a text field press enter to submit your changes. Use keyboard key i to switch back to mode allowing picking of initial values:

i pick initial x and y values

The integrator is a fourth-order Runge-Kutta method with constant step size.

Controls in ODE project panel:

ODE text field Type a new ordinary differential equation. Higher derivatives of y must be denoted dy, d2y or d3y. In this text field you can use all mathematical functions shown in Expressions.html.
Text field "Order" Defines the order (highest derivative of y) of the differential equation
Slider "Step Size" Discretization for x-values
Slider "Length" Length of the x-interval to evaluate the differential equation.
Slider "Initial x" Minimum value for x-interval
Text fields "Initial y" The first text field shows the initial y-value, the second text field shows the initial value of the first derivative of y, if "Order" is greater than 2, further text fields for the higher derivatives are displayed.
 

View source code:
PaExprOde.java of applet,
PjExprOde.java of project,
PjExprOde_IP.java of project panel.

© 1996-2013 Last modified: 07.05.2013 --- www.javaview.de --- The JavaView Project