# Applying

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**Homogeneous coordinates**— In mathematics, homogeneous coordinates, introduced by August Ferdinand Möbius in his 1827 work Der barycentrische Calcul [ [http://www history.mcs.st andrews.ac.uk/Biographies/Mobius.html Mobius biography ] ] , allow affine transformations to be …72

**Perturbation theory (quantum mechanics)**— In quantum mechanics, perturbation theory is a set of approximation schemes directly related to mathematical perturbation for describing a complicated quantum system in terms of a simpler one. The idea is to start with a simple system for which a …73

**Graduate school**— A graduate school or ( grad school ) is a school that awards advanced degrees, such as doctoral degrees with the general requirement that students must have earned a previous undergraduate (bachelor s) degree. Many universities award graduate… …74

**UCAS**— This article is about the UK Universities Colleges Admissions Service. For other uses, see UCAS (disambiguation). Universities Colleges Admissions Service UCAS logo as of 2009[update …75

**Education in Singapore**— Ministry of Education Minister Heng Swee Keat National education budget (2006) Budget S$6.966 billion General Details Primary Languages …76

**Ruffini's rule**— In mathematics, Ruffini s rule allows the rapid division of any polynomial by a binomial of the form x − r . It was described by Paolo Ruffini in 1809. Ruffini s rule is a special case of long division when the divisor is a linear factor. Ruffini …77

**Activities prohibited on Shabbat**— Main article: Shabbat See also: Shomer Shabbat and Rabbinically prohibited activities of Shabbat The commandment to keep Shabbat as a day of rest is repeated many times in the Tanakh, the Hebrew Bible. (See for example Exodus 31:12 17 quoted …78

**Teething**— 9 month infant with right lower central incisor about to emerge... ..5 days later that incisor is visible …79

**Rogers v. Tennessee**— SCOTUSCase Litigants=Rogers v. Tennessee ArgueDate=November 1 ArgueYear=2000 DecideDate=May 14 DecideYear=2001 FullName=Wilbert K. Rogers, Petitioner v. Tennessee USVol=532 USPage=451 Citation=121 S. Ct. 1693; 149 L. Ed. 2d 697; 2001 U.S. LEXIS… …80

**Invariant (computer science)**— In computer science, a predicate that, if true, will remain true throughout a specific sequence of operations, is called (an) invariant to that sequence.UseAlthough computer programs are typically mainly specified in terms of what they change, it …