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[Help-gsl] Pass additional parameters to numerical integration functions

From: Chris Gast
Subject: [Help-gsl] Pass additional parameters to numerical integration functions
Date: Tue, 2 Mar 2010 20:14:13 -0800


I have a function f(x_i) which I wish to integrate within a summation, for
each value of the summation index.  That is, I want compute:


In this particular case, I am trying to use gsl_integration_qagi().  I need
to be able to pass (at the very least) the index value of the summation, i.
In a perfect world, I could pass a vector of information that would then be
used to create f(x_i), and then I could integrate and sum.

Does such a perfect world exist?  Is anyone aware of how I might pass
additional arguments through the call to gsl_integration_qagi() to be used
by the function f()?


Chris Gast
Quantitative Ecology and Resource Management
University of Washington, Seattle, WA, USA

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