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Answers was a community-driven question-and-answer (Q&A) website or knowledge market owned by Yahoo! where users would ask questions and answer those submitted by others, and upvote them to increase their visibility. Questions were organised into categories with multiple sub-categories under each to cover every topic users may ask questions on ...
Many mathematical problems have been stated but not yet solved. These problems come from many areas of mathematics, such as theoretical physics, computer science, algebra, analysis, combinatorics, algebraic, differential, discrete and Euclidean geometries, graph theory, group theory, model theory, number theory, set theory, Ramsey theory, dynamical systems, and partial differential equations.
The question is whether or not, for all problems for which an algorithm can verify a given solution quickly (that is, in polynomial time), an algorithm can also find that solution quickly. Since the former describes the class of problems termed NP, while the latter describes P, the question is equivalent to asking whether all problems in NP are ...
The following is a list of websites that follow a question-and-answer format. The list contains only websites for which an article exists, dedicated either wholly or at least partly to the websites. For the humor "Q&A site" format first popularized by Forum 2000 and The Conversatron, see Q&A comedy website.
MathOverflow is a mathematics question-and-answer (Q&A) website, which serves as an online community of mathematicians. It allows users to ask questions, submit answers, and rate both, all while getting merit points for their activities. [1] It is a part of the Stack Exchange Network, but distinct from math.stackexchange.com.
An example Jumble-style puzzle. Jumble is a word puzzle with a clue, a drawing illustrating the clue, and a set of words, each of which is “jumbled” by scrambling its letters.
Yahoo! 360° Plus Vietnam's was shut down in 2012. [3] Yahoo! Accessibility Lab – Improved access to the Internet for the disabled community. [4] AdInterax – An online advertising company acquired in October 2006. [5] Yahoo! Answers – A community-driven question-and-answer (Q&A) website discontinued in May 2021. [6] APT from Yahoo!
An alpha version of ChaCha was launched on September 1, 2006. A beta version was introduced on November 6, 2006. [2] ChaCha said 20,000 guides had registered by year's end and that it had raised US$6 million in development funds, including support from Bezos Expeditions, a personal investment firm owned by Jeff Bezos, the entrepreneur behind Amazon.com. [3]