Daoyi Peng

Unregistered less info
199 reputation
5
bio website
location Hubei Province, China
age 21
visits member for 1 year, 1 month
seen Jul 16 '12 at 3:36
stats profile views 92

I am a student from Hubei Province, China.


Aug
14
awarded  Teacher
Jun
20
awarded  Nice Question
Jun
20
accepted How did Ramanujan get this result?
Jun
20
asked How did Ramanujan get this result?
Jun
6
comment What is the value of $\Gamma(\mathrm{i})$ ?
@M.B. Thank you very much!
Jun
6
comment What is the value of $\Gamma(\mathrm{i})$ ?
Thank you very much!
Jun
4
asked What is the value of $\Gamma(\mathrm{i})$ ?
May
24
accepted Can you help me with this problem?
May
24
comment Can you help me with this problem?
:Thank you very muah! It's useful.
May
24
asked Can you help me with this problem?
May
23
comment How to prove Gauss's Digamma Theorem?
@M Turgeon I can understand it's proof,Thank you again!en,I am a Chinese student,My English is poor,I will do my best to understand your words.
May
22
accepted How to prove Gauss's Digamma Theorem?
May
22
comment How to prove Gauss's Digamma Theorem?
@M Turgeon Thank you very much! I think it's helpful, but I can't find a simple proof.
May
21
asked How to prove Gauss's Digamma Theorem?
May
17
answered Sum of reciprocals of squares of the form $3n+1$?
May
16
comment how to evaluate $\lim_{x \to \infty}(1+4/x)^\sqrt{x^2+1}$
TMM I think it is easy to prove $$ \underset{\begin{smallmatrix} u\to 0 \\ v\to \infty \end{smallmatrix}}{\mathop{\lim }}\,{{\left( 1+u \right)}^{v}}={{\mathrm{e}}^{\underset{\begin{smallmatrix} u\to 0 \\ v\to \infty \end{smallmatrix}}{\mathop{\lim }}\,uv}} $$so I don't give a proof.Here I present a wide range of formulas,it can solve the problem,and I think you can Understand it and prove it.
May
15
asked What is value of $\sum_{n=1}^{\infty}\frac{1}{(3n+1)^2}$?
May
15
answered how to evaluate $\lim_{x \to \infty}(1+4/x)^\sqrt{x^2+1}$
Apr
29
revised How to prove $\int^{\infty}_{0}\frac{\sin x}{x}\mathrm{d}x=\frac{\pi}{2}$
added 11 characters in body; edited title
Apr
29
asked How to prove $\int^{\infty}_{0}\frac{\sin x}{x}\mathrm{d}x=\frac{\pi}{2}$