# Questions tagged [math]

The challenge involves mathematics in some central way. Also consider using more specific tags, listed in the tag wiki info.

8 questions with no upvoted or accepted answers
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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 ...
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### Yet another digit insertion problem

Given a positive number $n$ we call another (not same as n) positive number $m$ good if we insert same digits in both n and m and the resulting fractional value is same. m/n = m_{\text{...
339 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 ...
387 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 ...
141 views

### Conic Sections (simplified)

Given the equation of a non-parabolic conic section, output its characteristics. Spec Some info on conic sections: for more info visit Wikipedia From an equation of the form $ax^2+bx+cy^2+dy+E=0$, ... 237 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 ...