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230 What is the result of $\infty - \infty$? Aug 30 '11
30 Is there a simple explanation why degree 5 polynomials (and up) are unsolvable? Jul 29 '12
11 Solving 4 unknown angles in quadrilateral possible? Feb 6 '13
5 Can we ever get an irrational number by dividing two rational numbers? Oct 6 '13
4 Why are matrices written as such? Sep 9 '14
4 Why is there not a simpler way to calculate the standard deviation? Sep 1 '11
4 How exactly do exponentials work? Jan 12 '12
3 Base ten is called “decimal”; what's the name of numbers in base 15? Jan 23 '12
3 Why is the Fisher-Yates shuffle $O(n^2)$? Aug 19 '11
2 Why is negative minus negative not negative? Why is negative times positive not directionless? Feb 2 '18
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