Friday, February 3, 2017

calculus - Evaluating $int_{0}^{infty} mathrm{erfc}(ax)exp(bx^2+cx)dx$

I tried to evaluate the integral below using differentiation under the integral sign and error function tables [1,2,3]:



$$I = \int_{0}^{\infty} \mathrm{erfc}(ax)\exp(bx^2+cx)dx.$$


Also, the approach in this question could not be applied since, like in my case, the lower limit is $0$ instead of $-\infty$.


The application is computational modeling.


Any help will be greatly appreciated.

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