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Frequently the word link is used to describe any submanifold of the sphere diffeomorphic to a disjoint union of a finite number of spheres, .. In full generality, the word link is essentially the same as the word knot – the context is that one has a submanifold M of a manifold N (considered to be trivially embedded) and a non-trivial embedding of M in N, non-trivial in the sense that the 2nd ...
An open textbook is a textbook licensed under an open license, and made available online to be freely used by students, teachers and members of the public. Many open textbooks are distributed in either print, e-book, or audio formats that may be downloaded or purchased at little or no cost.
It sold 4.2 million copies in its first 16 months, [1] and made the New York Times Bestseller list for children's books. [ 2 ] Brain Quest is primarily intended for school children from grades 1 through 7 , but some card sets are geared towards younger children.
Textbooks written in Pashto distributed to Afghan school children. A textbook is a book containing a comprehensive compilation of content in a branch of study with the intention of explaining it. Textbooks are produced to meet the needs of educators, usually at educational institutions, but also of learners (who could be independent learners ...
The reversed order of composition in the formula (f ∘ g) −1 = (g −1 ∘ f −1) applies for composition of relations using converse relations, and thus in group theory. These structures form dagger categories. The standard "foundation" for mathematics starts with sets and their elements. It is possible to start differently, by ...
In mathematics, a finite field or Galois field (so-named in honor of Évariste Galois) is a field that contains a finite number of elements.As with any field, a finite field is a set on which the operations of multiplication, addition, subtraction and division are defined and satisfy certain basic rules.
.bik – BIK Bink Video file. A video compression system developed by RAD Game Tools; BRAW – a high bitrate video format used by Blackmagic Design cameras. CAM – aMSN webcam log file; COLLAB – Blackboard Collaborate session recording; DAT – video standard data file (automatically created when we attempted to burn as video file on the CD)
This remained the standard [4] in mathematics until Kenneth E. Iverson introduced, in his 1962 book A Programming Language, the names "floor" and "ceiling" and the corresponding notations ⌊x⌋ and ⌈x⌉. [5] [6] (Iverson used square brackets for a different purpose, the Iverson bracket notation.) Both notations are now used in mathematics ...