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## Re: Help with ODE solver

**From**: |
John W. Eaton |

**Subject**: |
Re: Help with ODE solver |

**Date**: |
Thu, 12 Sep 2002 02:22:51 -0500 |

On 12-Sep-2002, Douglas Eck <address@hidden> wrote:
| My experience is that it's better to break down the integration into
| intervals. Also, if you later need to speed up your code some, it can
| be much faster to write the xdot = f(x,t) as a compiled .oct file.
Lsode may integrate past the final output point and interpolate back
to find the state values at the final output point, so simply breaking
up the integration into subintervals may not be enough to avoid
numerical problems if parameters change in your RHS function at the
final output point of each interval. Using the optional tcrit input
for lsode may be needed anyway.
jwe
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**Help with ODE solver**, *Marco Antoniotti*, `2002/09/11`
**Re: Help with ODE solver**, *Michael Hanke*, `2002/09/12`
**Re: Help with ODE solver**, *Douglas Eck*, `2002/09/12`
**Re: Help with ODE solver**,
*John W. Eaton* **<=**
**Re: Help with ODE solver**, *Marco Antoniotti*, `2002/09/12`
*Message not available***Re: Help with ODE solver**, *John W. Eaton*, `2002/09/12`
**Re: Help with ODE solver**, *Marco Antoniotti*, `2002/09/12`
**Re: Help with ODE solver**, *John W. Eaton*, `2002/09/12`
**Re: Help with ODE solver**, *Marco Antoniotti*, `2002/09/12`
**Re: Help with ODE solver**, *John W. Eaton*, `2002/09/12`
**Re: Help with ODE solver**, *Marco Antoniotti*, `2002/09/13`
**Re: Help with ODE solver**, *John W. Eaton*, `2002/09/13`
**Re: Help with ODE solver**, *Jon Davis*, `2002/09/13`
**Re: Help with ODE solver**, *Marco Antoniotti*, `2002/09/13`