Derek 朕會功夫

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bio website derek1906.site50.net location United States, Hong Kong age 19 member for 1 year, 10 months seen Apr 14 at 6:42 profile views 116

QWERTYUIOP

ASDFGHJKL

ZXCVBNM

jQuery is taking over the world! http://i.stack.imgur.com/sGhaO.gif

function aboutMe(){
var person = {
name : "Derek",
language : ["JavaScript", "Java", "PHP-some"],
website : "http://derek1906.site50.net",
use : function(){
stayInStackOverflow(today);
}
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return person;
};


Hi there! I am the 283863 th user in stackoverflow.

Visit my website at:

(Actually both of them are the same.)

14 Questions

 8 Solve without using L'Hôpital's rule? 4 What is $\cot(\pi/2)$? 3 How to calculate the integral of this fraction 3 $1 +1$ is $0$ ?​ [duplicate] 2 Prove that all values satisfy this expression

279 Reputation

 +5 Series is convergent but it seems it is divergent? +10 Prove that all values satisfy this expression +2 How to find this limit $\lim_{x\to+\infty}f(x)=0$ +5 How to calculate the integral of this fraction

This user has not answered any questions

15 Tags

 0 calculus × 7 0 homework × 2 0 limits × 3 0 improper-integrals 0 sequences-and-series × 2 0 indefinite-integrals 0 trigonometry × 2 0 infinity 0 integration × 2 0 divergent-series

18 Accounts

 Stack Overflow 21,302 rep 135096 Meta Stack Exchange 512 rep 39 Mathematics 279 rep 18 Area 51 270 rep 4 Chinese Language 229 rep 15