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MathGroup Archive 1998

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RE: Method to eliminate NIntegrate warning



All depends on what you are trying to NIntegrate ! In this kind of
situation, please post your example more explicitely, nothing can be
done without it.

-----------------------------------------------

Jean-Marie THOMAS
Conseil et Audit en Ingenierie de Calcul jmthomas@cybercable.tm.fr
+33 (0)3 88 32 93 64
www.cybercable.tm.fr/~jmthomas
=======================


-----Message d'origine-----
De:	Soo-Hwan Kim [SMTP:kss@ssel.snu.ac.kr] Date:	vendredi 16 janvier
1998 10:35 A:	mathgroup@smc.vnet.net
Objet:	[mg10481] Method to eliminate NIntegrate warning

I want to know the method to eliminate NIntegrate warning.

The two warning message follows :

NIntegrate::slwcon:
   Numerical integration converging too slowly;
     suspect one of the following: singularity,
     oscillatory integrand, or insufficient
     WorkingPrecision.

NIntegrate::ncvb:
   NIntegrate failed to converge to prescribed
     accuracy after 7 recursive bisections in x near
    x = 0.126684.

How can I escape from this problem ? When above-case happened, can I
believe the accuracy of my data ?





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