[scilab-Users] Strange problem with "integrate" : "Convergence problem..." error 24 (Scilab 4.1.2)

[Maki 1sy8]

On Wed, Oct 29, 2008 at 5:17 PM, Michaël Baudin
<michael.baudin at scilab.org> wrote:

>
>> By the way, which algorithm is used by Scilab for numerical quadrature ?
>>
>
> The algorithms used are those of the quadpack library (and not quapro, as I
> wrote in my previous message). The algorithm used in the previous
> example is a 21-point gauss-kronrod quadrature and is located in the
> quarul.f source code :
> http://gitweb.scilab.org/?p=scilab;a=blob;f=scilab/modules/differential_equations/src/fortran/quarul.f;h=b35ec0fcad2e2e6e72e1e0065d8ed7bcdd5dd013;hb=HEAD
>

Hi all.

How does it compare with the Lobatto quadrature used by Matlab's quadl
? It's based on an article by Gander and Gautschi in 2000.