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May
16
answered Approximate solution of differential equation
Mar
15
awarded  Notable Question
Feb
23
awarded  Notable Question
Jan
11
awarded  Revival
Dec
26
awarded  Nice Answer
Oct
14
awarded  integration
Oct
5
answered how to calculuate $\int_0^ \pi \sqrt{1+x^2 \sin^2x}dx$
Oct
5
awarded  Yearling
Oct
2
answered Integrating $\int_0^ex^{1/x}\ \mathrm dx$
Sep
29
answered Computing $\lim\limits_{n\to\infty} \Big(\sum\limits_{i = 1}^n \sum\limits_{j = 1}^n \frac1{i^2+j^2}-\frac{\pi}{2} \log(n)\Big)$.
Sep
24
awarded  Autobiographer
Sep
18
answered Is there an elementary proof for Euler's product for Sine?
Sep
15
comment Integral $\int_{0}^1\frac{\ln\frac{3+x}{3-x}}{\sqrt{x(1-x)}}dx$
Many thanks! Differentiation of the integrand is a cool thing!
Sep
15
comment Integral $\int_{0}^1\frac{\ln\frac{3+x}{3-x}}{\sqrt{x(1-x)}}dx$
Thank you! The product formula is especially nice!
Sep
15
comment Integral $\int_{0}^1\frac{\ln\frac{3+x}{3-x}}{\sqrt{x(1-x)}}dx$
Thanks for the answer! Clear!
Sep
15
accepted Integral $\int_{0}^1\frac{\ln\frac{3+x}{3-x}}{\sqrt{x(1-x)}}dx$
Sep
12
awarded  Nice Question
Sep
11
asked Integral $\int_{0}^1\frac{\ln\frac{3+x}{3-x}}{\sqrt{x(1-x)}}dx$
Aug
28
answered Integral $ \int_{0}^1 \sqrt{\frac{\ln{x}}{x^2-1}} dx$
Aug
1
awarded  Good Question