L. Figure and 5. , 4 représente les erreurs obtenues dans le cas de deux obstacles circulaires entourés d'une frontière artificielle elliptique (Configuration 4) Comme dans la configuration 2, les erreurs générées par les trois nouvelles CLA sont très proches et plus faibles

. Enfin, on regarde le cas de quatre obstacles triangulaires entourés d'une frontière circulaire (Configuration 5) Les résultats obtenus sont présentés dans la Figure 5.5. Les conclusions sont les mêmes que précédemment

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