Stack Exchange

Ben Alpert

United States

arithmetic.zetamac.com

Age: 19

Khan Academy / Carnegie Mellon

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Top Questions
Top Answers
115
How does one convert a string to lowercase in ruby
stackoverflow.com

59
How do you uninstall MySQL from Mac OS X?
stackoverflow.com

46
Math optimization in C#
stackoverflow.com

41
parsing HTML on the iPhone
stackoverflow.com

40
Use jquery to remove a div with no children
stackoverflow.com

38
How to remove Installation of MySQL on Mac OS X
stackoverflow.com

35
How can you prove that the square root of two is irrational?
math.stackexchange.com

34
rails if object.nil? then magic '' in views?
stackoverflow.com

33
Rotate a point by an angle
stackoverflow.com

31
What's the difference between a G♭ and an F#?
music.stackexchange.com

25
Hidden features of CSS
stackoverflow.com

21
Ruby: How to find item in array which has the most occurrences?
stackoverflow.com

20
Total Size of NSMutableArray object
stackoverflow.com

20
Can I create music sheets with LaTeX?
tex.stackexchange.com

19
Best timing method in C?
stackoverflow.com

19
Tools to make CSS sprites?
stackoverflow.com

18
Does iOS 5 have garbage collection?
stackoverflow.com

18
What is the most reliable way to send a zip file via email?
serverfault.com

16
What does map(&:name) mean in Ruby?
stackoverflow.com

15
Getting phone UUID through iPhone SDK
stackoverflow.com

15
How do you center equations?
tex.stackexchange.com

14
jQuery selection with dynamic id's
stackoverflow.com

14
How do I automatically run an application on USB attach or CD insert on Mac OS X?
stackoverflow.com

14
Ruby Code explained
stackoverflow.com

14
jQuery .each() this and element
stackoverflow.com

14
Why is the 2nd derivative written as $\frac{\mathrm d^2y}{\mathrm dx^2}$?
math.stackexchange.com

14
When learning a piece, concentrate on playing the beginning really well or the whole piece the same?
music.stackexchange.com

13
How can I test an NSString for being nil?
stackoverflow.com

12
Probability that a stick randomly broken in two places can form a triangle
math.stackexchange.com

12
Why there is only one half-tone between e-f and b-c
music.stackexchange.com

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