Big trouble in evaluating an Improper integral in complex analysis
31964
Evaluating $\int_0^{\infty}\frac{\ln(x^2+1)}{x^2+1}dx$
81258
Evaluation of $\int_{-\infty}^\infty \frac{\sin(at)}t\ dt$
1366
Complex Analysis: Complex Integral
92934
Triangle inequality for integrals with complex valued integrand
152339
Complex-valued Fourier integral: $ \int_{ - \infty }^{ + \infty } {\frac{{\cos (ax)}}{{{x^2} + 1}}{e^{ - ibx}}\,\mathrm dx} $
145183
finding $\int_0^\infty \dfrac{dx}{1+x^4}$ through complex analysis
47779
Why does this integral have a complex component?
100569
Evaluating the improper integral $\int_{0}^{\infty} \frac{x^3}{e^{x}-1} dx$
76115
Very difficult integral (for me)
158147
Calculating $\int_{-\infty}^{\infty}\frac{\sin(ax)}{x}\, dx$ using complex analysis
109857
Contour integral of analytic function with singularity
124445
Integral of the form $\int_{0}^{\infty}e^{-ax}e^{-x^{4}}dx$
91196
Complex Integration of $\int_0^\infty e^{-ax}\cos(bx)\,dx$
59667
Evaluating $\int_0^\infty\frac{\sin(x)}{x^2+1}\, dx$
18836
Complex integral over a circle
8934
How do I solve this improper integral: $\int_{-\infty}^\infty e^{-x^2-x}dx$?
23087
Evaluate $\int_0^\infty \frac{(\log x)^2}{1+x^2} dx$ using complex analysis