a,b,c,d |
Parameters of dynamical equations |

dt |
Time step for plotting evolution |

x-ax |
Variable plotted on horizontal axis (0=time, 1=X, 2=Y, 3=Z) |

y-ax |
Variable plotted on vertical axis |

X0,Y0,Z0 |
Initial values for X,Y,Z |

tran |
Time of evolution to eliminate transient before plotting |

dX0,dY0,dZ0 |
Timeseries: Small change in initial values |

Interval |
Spectrum: data is accumulated every Interval time steps |

Points |
Spectrum: number of data points for each transform |

Window |
Spectrum: type of window used in calculating power spectrum |

Variable |
Poincare, ReturnMap, MaxMap, Reconstruction: variable used for section or maximum |

Section |
Poincare, ReturnMap: value of Variable at section |

Variable |
Reconstruction: variable used for reconstruction |

Delay |
Reconstruction: delay as multiple of dt |

PlotMark |
Poincare, ReturnMap, MaxMap: Size of mark plotted (0=dot) |

- If you change a text entry, you
**must**hit*Enter*or*Return*on the keyboard, or*Reset*within the applet for the change to take effect. - The slider changes the speed of the iteration. Setting the speed too high may make the applet unresponsive or crash, depending on the Java implementation. Setting to a lower speed increases the accuracy of the numerical solver, by setting a smaller iteration time step for the solver (not the plotting). However you will usually want to increase the speed from the default value.
*Allow sleep:*allows the applet to sleep after each iteration to allow the screen updates to catch up. Applet may crash if set to "No", depending on the Java implementation: if not, the program will run faster.*Show Time:*switches continuous update of time of iterations. Some Java implementations have an annoying screen flash if set to "Yes".- The
*Error*indicated is the sum of the errors in the quantities plotted over a single*iteration*time step as estimated from the integrating routine by comparing with results obtained by halving the time step. *Show Ghost:*switches whether to show a pre-image of the trajectory- Clicking on the running plot will start a new evolution from that point as initial condition (the third coordinate, not plotted, is unchanged).
- In the Poincare section and map plots, regions of interest may be enlarged by selecting the desired region by dragging the mouse on the stopped plot.
*Reset*or a click outside the stationary plot restarts from the initial condition, and sets the axes range to default values.*Clear*simply erases the plot but continues the same run.

[Diagnostics] [Equations]

Last modified Thursday, December 9, 1999

Michael Cross