Order of an algebraic number Consider some arbitrary polynomial with integer coefficients, $$a_n x^n + a_{n-1}x^{n-1} + \cdots + a_1x + a_0 = 0$$ We'll assume that \$a_n \ne 0\$ and \$a_0 \ne 0\$. The solutions to this polynomial are algebraic numbers. For example, take the polynomial $$x^4 - 10x...

See also Stack Exchange Glossary - Dictionary of Commonly-Used Terms. Abbreviations marked with a star (*) are chat specific. Catalog: A type of simple on-topic challenge where the challenge's aim not so much to find a winner as it is to create a catalog of solutions in many languages. CG: Code G...

Challenge You should write a program that has one in (your code in bytes) chance to print out a 4. So if your code has n bytes, your code should have 1 in an n chance to print out a 4. Rules You should not use any whitespace or comments to get to the number that you want. You shouldn't use any l...

I was browsing Stack Overflow when I saw this post in Puzzling in the hot network questions and decided to make a challenge out of it (all credit goes to the creator of the challenge). Overview A Chess Number is a number that, when converted to base 18, results in a valid chess coordinate pair, w...

Low difficulty Image 1: ABCDabcd01:::: Image 2: Fun fact: The practice of designing a cryptographic algorithm which itself uses cryptography to allow the designer of the algorithm to read any message is known as "kleptography" (not relevant to this, just an interesting field that's a friend-o...