Integrate $e^{x^2} dx$
123940
How can one prove the impossibility of writing $ \int e^{x^{2}} \, \mathrm{d}{x} $ in terms of elementary functions?
108554
Integrating $\int_0^\infty\frac{1}{1+x^6}dx$
75562
How to integrate $\int x^2 \sin^2(x)dx$
84884
Need help with the integral $\int_{0}^\infty e^{-x^{2}}x^{2n+1}dx $
115375
Indefinite integral of $e^{x^n}$
31529
Integrating $\int^2_{-2}\frac{x^2}{1+5^x}$
148613
Integrate $\int_{0}^{1}{x^{-x}(1-x)^{x-1}\sin{\pi x}dx}$
40310
How to integrate $\frac{1}{\sqrt{1+x^2}}$ using substitution?
67533
A question on integration
44737
$ \int_{-\infty}^{\infty} x^4 e^{-ax^2} dx$
96191
Integral $\int_0^{\infty} \sin(x^2)/x^2\,dx$
129318
Integrate via substitution and derivation rule
114956
Integrate $\int \cos^4 x\,\mathrm dx.$
53518
Integrating : $\int_0^1 {\frac {x^a-x^b} {\ln x} dx}$
80736
How to integrate $\int\frac{\sqrt{1+x^2}}{x}\,\mathrm dx$
93214
How does Mathematica integrate?
9518
Evaluate: $ \int_0^1 \int_y^1 e^{x^2 }dxdy$