QM Integral and Online Integral Tables

The discussion focuses on a specific integral from Quantum Mechanics, \int_{-\infty}^{\infty} \(A*e^{-(x-a)^2} dx, and the difficulty in finding comprehensive online integral tables. Users express frustration over the lack of accessible resources, often encountering subscription-based databases. It is clarified that A is a constant, not dependent on x, allowing for simplification using a Poisson integral approach. The integral cannot be expressed in terms of familiar functions, but if a = 0 and A = 1, the result simplifies to sqrt(pi). Overall, the conversation highlights the challenges of finding useful integral resources and solving complex integrals in Quantum Mechanics.