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Top Questions
30
votes
How to take partial trace?
quantum-information
linear-algebra
trace
asked May 2, 2015 at 17:27
physics.stackexchange.com
29
votes
What is the actual meaning of the density operator?
quantum-mechanics
quantum-information
density-operator
asked Jan 8, 2015 at 11:26
physics.stackexchange.com
27
votes
Can input to a Turing machine be of infinite length?
turing-machines
asked Oct 18, 2015 at 7:02
cs.stackexchange.com
20
votes
How to find the element of the Digit Sum sequence efficiently?
time-complexity
number-theory
asked Apr 20, 2016 at 13:59
cs.stackexchange.com
11
votes
How to use Scala Cats Validated the correct way?
scala
validation
functor
scala-cats
asked Jan 24, 2019 at 15:45
stackoverflow.com
11
votes
Are eigen spaces orthogonal?
linear-algebra
matrices
eigenvalues-eigenvectors
asked Jan 6, 2015 at 13:28
math.stackexchange.com
10
votes
How to separate out parsing from validation in case of versioned config using scala?
scala
validation
serialization
version
scala-cats
asked Jan 25, 2019 at 14:12
stackoverflow.com
10
votes
Why does play-json lose precision while reading/parsing?
scala
playframework
play-json
asked Mar 17, 2019 at 14:36
stackoverflow.com
10
votes
Why schmidt decomposition only holds for two component composite systems?
quantum-mechanics
quantum-information
asked May 9, 2015 at 12:38
physics.stackexchange.com
10
votes
Can a regular expression be infinite?
formal-languages
regular-languages
regular-expressions
asked Oct 4, 2015 at 0:39
cs.stackexchange.com
1
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Top Answers
10
Is it possible to get Nth Fibonacci number in sublinear time?
cs.stackexchange.com
9
Is there a known method for constructing a grammar given a finite set of finite strings?
cs.stackexchange.com
8
Can all NP-hard problems be reduced to one another?
cs.stackexchange.com
7
On graph isomorphism for weighted graphs
cs.stackexchange.com
6
SPOJ 370 - Ones and zeros (ONEZERO)
stackoverflow.com
6
Dynamic Programming Coin Change Problems
stackoverflow.com
6
How does this isPrime function work?
stackoverflow.com
6
Number of ways to remove items from box
stackoverflow.com
6
Does a context-free grammar with multiple variables have a "starting" point?
cs.stackexchange.com
6
How to compute the sum of this series involving golden ratio, efficiently?
cs.stackexchange.com
5
Number of Triangles Containing The Point (0,0)
stackoverflow.com
5
What is the smallest positive number that is evenly divisible by all of the numbers from 1 to 100?
stackoverflow.com
5
How turing machine can be used as enumerator
cs.stackexchange.com
5
Show that the Halting problem is reducible to its complement
cs.stackexchange.com
5
Finding a kernel for d-Bounded degree deletion
cs.stackexchange.com
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