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Top Questions
54
votes
Why can't we define more elementary functions?
reference-request
special-functions
definition
elementary-functions
asked Jun 16, 2014 at 20:26
math.stackexchange.com
35
votes
Are there contradictions in math?
soft-question
education
asked Apr 14, 2014 at 22:18
math.stackexchange.com
19
votes
Why there are no approximation algorithms for SAT and other decision problems?
algorithms
satisfiability
approximation
decision-problem
asked Nov 7, 2016 at 23:41
cs.stackexchange.com
17
votes
Is there a math function to find an element in a vector?
notation
vectors
definition
asked Mar 30, 2016 at 4:11
math.stackexchange.com
15
votes
How to sort in descending order with numpy?
python
sorting
numpy
asked Mar 28, 2016 at 15:55
stackoverflow.com
7
votes
pgfplots: Two Ordinates (y-axis) or Multiple Axes | Use 'ylabel' as Legend
tikz-pgf
pgfplots
legend
asked Jun 20, 2017 at 18:36
tex.stackexchange.com
6
votes
How to find the index of the maximum over a subset of elements in julialang?
julia-lang
asked Nov 1, 2017 at 14:20
stackoverflow.com
6
votes
How to plot a network flow with tikz?
tikz-pgf
asked Dec 1, 2016 at 22:00
tex.stackexchange.com
6
votes
Is finding a set cover of size $k$ NP-complete?
reductions
asked Nov 6, 2016 at 3:06
cs.stackexchange.com
6
votes
What is the approximation ratio of this randomized algorithm for finding matchings?
algorithms
algorithm-analysis
approximation
randomized-algorithms
asked Mar 7, 2016 at 16:31
cs.stackexchange.com
1
2
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Top Answers
5
Is finding a set cover of size $k$ NP-complete?
cs.stackexchange.com
5
Boolean variable true iff equation is satisfied in ILP
cs.stackexchange.com
5
Skipping line after "Proof" in proof environment
tex.stackexchange.com
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