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## [Help-gsl] Question regarding integration.

**From**: |
Jigal Aharonovich |

**Subject**: |
[Help-gsl] Question regarding integration. |

**Date**: |
Mon, 30 Jul 2007 22:10:19 +0300 |

**User-agent**: |
Thunderbird 1.5.0.12 (X11/20070604) |

Hi there,

`I need to integrate a vector function of a scalar variable, namely, a
``set of functions
`parameterized with the same parameter.
All function share a common factor, which is also a function.
I see the following options:
1. Regardless of the common factor, integrate them as separate functions,
with the quadpack set of the integrators.
(well, choosing one of the integrators, that is...)

` This pays the penalty of recalculating the factor function for all
``integrator instances.
`

`2. Integrate them as an ODE set, where there are no mutual dependencies
``between them.
` However, in each ODE step, the factor function is computed only once.
Questions:
1. What would you recommend?

`2. Pardon my ignorance, but are these methods equivalent, in the
``numerical sense?
`
Kinds regards,
Jigal.

**[Help-gsl] Question regarding integration.**,
*Jigal Aharonovich* **<=**