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Mathematics
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John
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Scientist and software developer by day, musician and blogger by night. Check out Mighty Bargain Hunter for my personal finance blog.

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Top posts
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55
If a prime number is reversed, and then appended to itself, why is the result always a composite number?
Jan 6, 2015
36
What is the next number in this sequence: $1, 2, 6, 24, 120$?
Aug 16, 2016
34
Is there a better way to find the closest point on a line?
Jul 28, 2016
26
Probability the three points on a circle will be on the same semi-circle
Jan 6, 2014
25
Why does $r = \cos \theta$ produce a circle?
Dec 10, 2013
22
Are there simple methods for calculating the determinant of symmetric matrices?
Dec 11, 2013
20
How to prove that either $2^{500} + 15$ or $2^{500} + 16$ isn't a perfect square?
Dec 3, 2013
19
Number of ways to arrange 5 monkeys in a row?
Aug 11, 2017
19
Why is vector times vector equal to a number?
Jul 6, 2018
18
Why is it not possible to generate an explicit formula for Newton's method?
Jan 6, 2017
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How smart is it to really be 100% debt free?
67
Java boolean getters "is" vs "are"
44
Why aren't pointers initialized with NULL by default?
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Buying my first car out of college
37
How do we thank the diamond moderators?