Questions on the integration $\int_0^\infty e^{-(x^2+a^2/x^2)}dx$
33005
How to evaluate $\int_{0}^{+\infty}\exp(-ax^2-\frac b{x^2})\,dx$ for $a,b>0$
115375
Indefinite integral of $e^{x^n}$
123694
How to compute the integral $\int_{0}^{\infty} \frac{x^{1/3}}{1+x^{2}} \ dx$
91196
Complex Integration of $\int_0^\infty e^{-ax}\cos(bx)\,dx$
6014
Evaluating $\int_{-\infty}^{\infty}\frac{\exp\left(-a x^2\right)}{x^2+b^2}dx$
145183
finding $\int_0^\infty \dfrac{dx}{1+x^4}$ through complex analysis
54735
What is the closed form of $\int e^{x^2} \, dx$?
109385
Evaluating the integral $\int_{-\ln 2}^{\ln 2} e^{-x}(\sin x+x)^{1/3}dx$
80319
Integrate: $\int (x^2+a^2)^{-3/2} \cdot dx$
41372
Stuck on crucial step while computing $\int_{- \infty}^{\infty} e^{-t^2}dt$
48233
Evaluating $\int_0^\infty \frac{dx}{1+x^4}$.
765
$\int_0^\infty \frac{\log(x)}{x^2+\alpha^2}$ using residues
90095
Integrate $\int_0^{\infty } \frac{\cos x}{x} dx$
124445
Integral of the form $\int_{0}^{\infty}e^{-ax}e^{-x^{4}}dx$
100569
Evaluating the improper integral $\int_{0}^{\infty} \frac{x^3}{e^{x}-1} dx$
31227
Find the indefinite integral $\int {dx \over {(1+x^2) \sqrt{1-x^2}}} $
35861
Evaluate $\int_0^\infty\frac{\ln x}{1+x^2}dx$