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Top Questions
56
votes
Intuition behind logarithm inequality: $1 - \frac1x \leq \log x \leq x-1$
inequality
logarithms
asked Mar 8, 2013 at 4:05
math.stackexchange.com
29
votes
Characteristic function of a standard normal random variable
probability-distributions
normal-distribution
characteristic-functions
asked Nov 27, 2011 at 13:28
math.stackexchange.com
22
votes
Yao's Minimax Principle on Monte Carlo Algorithms
randomized-algorithms
asked Jan 26, 2012 at 21:54
cstheory.stackexchange.com
15
votes
What does 'gadget' mean in NP-hard reduction?
cc.complexity-theory
np-hardness
terminology
reductions
asked Nov 28, 2011 at 18:49
cstheory.stackexchange.com
15
votes
Sherman-Morrison type formula for Moore-Penrose pseudoinverse
linear-algebra
matrices
ra.rings-and-algebras
matrix-inverse
asked Nov 3, 2013 at 18:37
mathoverflow.net
13
votes
Is the family of exponential distributions closed under scaling?
homework
probability-distributions
asked Nov 25, 2011 at 16:12
math.stackexchange.com
12
votes
how can a makefile detect whether a command is available in the local machine?
shell
make
hashsum
asked Jan 13, 2012 at 4:02
unix.stackexchange.com
10
votes
Kind of submultiplicativity of the Frobenius norm: $\|AB\|_F \leq \|A\|_2\|B\|_F$?
linear-algebra
matrices
perturbation
asked Mar 29, 2011 at 1:44
mathoverflow.net
9
votes
\cline doesn't work
tables
rules
asked Jan 1, 2012 at 1:30
tex.stackexchange.com
9
votes
Set of Positive Definite matrices with determinant > 1 forms a convex set
linear-algebra
inequalities
convex-geometry
asked Nov 8, 2013 at 12:35
mathoverflow.net
1
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