Questions tagged [math]
The challenge involves mathematics. Also consider using more specific tags: [number] [number-theory] [arithmetic] [combinatorics] [graph-theory] [geometry] [abstract-algebra] [integer].
6
questions with no upvoted or accepted answers
15
votes
0answers
339 views
Checkerboard the Matrix
Task
Given a matrix, your program/function should output a row-equivalent matrix in checkerboard form ( \$A_{ij}=0\$ if and only if \$i+j\$ is odd).
Two matrices are defined to be row-equivalent if ...
10
votes
0answers
491 views
Finding Radical Ideals
Sandbox
Finding radicals of arbitrary ideals in rings is hard! However, it's a doable task in polynomial rings, since they are Noetherian (all ideals are finitely generated)
Background
A quick ...
9
votes
0answers
444 views
Write a FAST word equation solver
This question is similar to Write a word equation solver by David Frank but different in three important ways: (1) David asked for just the first solution found, and I am asking for all the solutions. ...
6
votes
0answers
317 views
What is the simplest reversible circuit that computes conjugacy of transpositions?
Reversible computation refers to computation in which little or no information is deleted. Reversible computation a major component of quantum computation, and reversible computation is potentially ...
2
votes
0answers
163 views
Compute the Three Dimensional Discrete Cosine Transform
Challenge
I've checked that there is a question Compute the Discrete Cosine Transform which is a competition for implementing a shortest solution to compute the one dimensional discrete cosine ...
2
votes
0answers
320 views
Find the pattern
I feel tired to do "find the pattern" exercise such as
1 2 3 4 (5)
1 2 4 8 (16)
1 2 3 5 8 (13)
Please write a program that finds the pattern for me.
Here, we ...
