[Scilab-users] Integration with infinite limits

[Dang, Christophe]

Hello,

> De : users [mailto:users-bounces at lists.scilab.org] De la part de AnonymousPersona
> Envoyé : mardi 18 novembre 2014 07:41
>
> Is there a way to find integrals from limit -infinity to +infinity in scilab.

If you are looking for symbolic integrals,
I'm afraid Scilab is not the best tool.

If you are sure the integral is defined,
I suggest you just perform integrals from a big negative value to big positive value
e.g. 1e-380 to 1e308.

Or, knowing the integral between -M and M (arbitrary value),
you calculate the integral between -2*M and -M, and between M and 2*M,
add the result to the previous value,
and stop if the last increment is small or if M reaches high values.

HTH

--
Christophe Dang Ngoc Chan
Mechanical calculation engineer
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