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Mathematics
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JACKY88
  • Member for 11 years, 10 months
  • Last seen more than a month ago
  • USA
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I am JACKY.

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Top posts
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123
How do you find the center of a circle with a pencil and a book?
Oct 2, 2012
19
How to do integral $\int_{-\infty}^{\infty} x^4 e^{-x^2/2}dx$
Mar 12, 2013
16
Great arc distance between two points on a unit sphere
Nov 6, 2012
11
Integral evaluation $\int_{-\infty}^{\infty}\frac{\cos (ax)}{\pi (1+x^2)}dx$ [duplicate]
Jan 8, 2013
9
Differences between variable and variate
Sep 30, 2012
8
Example where $\int |f(x)| dx$ is infinite and $\int |f(x)|^2 dx$ is finite
Nov 1, 2012
7
What sequence has this property?
Oct 7, 2012
6
How to prove that the limit is max(0,x)?
Mar 7, 2013
6
Prime, followed by the cube of a prime, followed by the square of a prime. Other examples?
Oct 12, 2012
6
Negative Ratio - Is it possible
Jan 23, 2013
Top network posts
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80
Insert a character at a specific location in a string
60
Solid black box in the proof environment
31
Make a scatter plot from two lists
29
How to skip an error in a loop
23
precision, recall and f-measure in R