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Top Questions
84
votes
Is Lagrange's theorem the most basic result in finite group theory?
abstract-algebra
group-theory
teaching
proof-strategy
asked Mar 21, 2011 at 17:39
math.stackexchange.com
82
votes
Direct proof that $\pi$ is not constructible
real-analysis
number-theory
irrational-numbers
geometric-construction
asked Jan 30, 2012 at 0:08
math.stackexchange.com
44
votes
Which finite groups are the group of units of some ring?
abstract-algebra
group-theory
finite-groups
finite-rings
asked May 7, 2013 at 12:43
math.stackexchange.com
44
votes
Rings in which every non-unit is a zero divisor
ac.commutative-algebra
asked Oct 18, 2010 at 14:48
mathoverflow.net
38
votes
A critique of TeX?
tex-core
programming
books
asked Jun 4, 2012 at 14:38
tex.stackexchange.com
29
votes
Robust algorithm for $2 \times 2$ SVD
linear-algebra
matrix
reference-request
svd
matrix-factorization
asked Oct 28, 2013 at 17:56
scicomp.stackexchange.com
28
votes
Families of functions closed under integration
integration
indefinite-integrals
asked Aug 23, 2013 at 2:14
math.stackexchange.com
20
votes
Size of largest prime factor
number-theory
prime-numbers
analytic-number-theory
asked Apr 28, 2013 at 14:35
math.stackexchange.com
18
votes
Is the DVI format de facto dead?
microtype
dvi
asked Aug 28, 2013 at 15:07
tex.stackexchange.com
18
votes
Primes in $\lfloor a^{n} \rfloor$
number-theory
prime-numbers
asked Sep 19, 2013 at 12:42
math.stackexchange.com
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Top Answers
117
Check if a file exists with Lua
stackoverflow.com
115
Is it bad form to write mysterious proofs without explaining what one intends to do?
math.stackexchange.com
102
How do I increase sudo password remember timeout?
apple.stackexchange.com
100
Every nonzero element in a finite ring is either a unit or a zero divisor
math.stackexchange.com
94
Continuous bijection from $(0,1)$ to $[0,1]$
math.stackexchange.com
87
Lua print on the same line
stackoverflow.com
78
Why “characteristic zero” and not “infinite characteristic”?
math.stackexchange.com
73
Proof: 1007 can not be written as the sum of two primes.
math.stackexchange.com
70
Why can't a set have two elements of the same value?
math.stackexchange.com
69
Why does Wolfram Alpha say the roots of a cubic involve square roots of negative numbers, when all three roots are real?
math.stackexchange.com
66
Reading whole files in Lua
stackoverflow.com
65
Elegant proofs that similar matrices have the same characteristic polynomial?
math.stackexchange.com
64
How to determine if a list of polygon points are in clockwise order?
stackoverflow.com
63
Is an automorphism of the field of real numbers the identity map?
math.stackexchange.com
62
How do you cleanly exit interactive Lua?
stackoverflow.com
61
How do I append to a table in Lua
stackoverflow.com
59
Why do we use the word "scalar" and not "number" in Linear Algebra?
math.stackexchange.com
58
Why is integration so much harder than differentiation?
math.stackexchange.com
57
Lua replacement for the % operator
stackoverflow.com
55
Which is larger? $20!$ or $2^{40}$?
math.stackexchange.com
55
How to get an empty page with text at bottom?
stackoverflow.com
54
Lua's bytecode specification
stackoverflow.com
52
What are good books to learn graph theory?
math.stackexchange.com
51
lua: retrieve list of keys in a table
stackoverflow.com
49
Really advanced techniques of integration (definite or indefinite)
math.stackexchange.com
48
What does infinity in complex analysis even mean?
math.stackexchange.com
47
Ring of polynomials over a field has infinitely many primes
math.stackexchange.com
47
Mac OS X terminal delete word by word
stackoverflow.com
46
How do you prove that $n^n$ is $O(n!^2)$?
math.stackexchange.com
45
Subgroups of a cyclic group and their order.
math.stackexchange.com
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