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The P versus NP problem is a major unsolved problem in theoretical computer science. Informally, it asks whether every problem whose solution can be quickly verified can also be quickly solved. Here, quickly means an algorithm that solves the task and runs in polynomial time exists, meaning the task completion time varies as a polynomial ...
Computers and Intractability: A Guide to the Theory of NP-Completeness. Series of Books in the Mathematical Sciences (1st ed.). New York: W. H. Freeman and Company. ISBN 9780716710455. MR 0519066. OCLC 247570676.. This book is a classic, developing the theory, then cataloguing many NP-Complete problems. Cook, S.A. (1971). "The complexity of ...
Google Books (previously known as Google Book Search, Google Print, and by its code-name Project Ocean) [ 1] is a service from Google that searches the full text of books and magazines that Google has scanned, converted to text using optical character recognition (OCR), and stored in its digital database. [ 2]
Online public access catalog. The online public access catalog ( OPAC ), now frequently synonymous with library catalog, is an online database of materials held by a library or group of libraries. Online catalogs have largely replaced the analog card catalogs previously used in libraries.
The New York Public Library ( NYPL) is a public library system in New York City. With nearly 53 million items and 92 locations, the New York Public Library is the second-largest public library in the United States behind the Library of Congress and the fourth-largest public library in the world. [5] It is a private, non-governmental ...
Computer science. Computer science is the study of computation, information, and automation. [1] [2] [3] Computer science spans theoretical disciplines (such as algorithms, theory of computation, and information theory) to applied disciplines (including the design and implementation of hardware and software ).
A nurse practitioner ( NP) is an advanced practice registered nurse and a type of mid-level practitioner. [ 1][ 2] NPs are trained to assess patient needs, order and interpret diagnostic and laboratory tests, diagnose disease, prescribe medications and formulate treatment plans. NP training covers basic disease prevention, coordination of care ...
Orlean in 2018. The Library Book received strongly favorable reviews and was selected as a "PW Pick" by Publishers Weekly. [4] Reviewing the book for The New York Times, Michael Lewis wrote, "Susan Orlean has once again found rich material where no one else has bothered to look for it…Once again, she's demonstrated that the feelings of a writer, if that writer is sufficiently talented and ...