Elementary

Elementary:
*Education
** Elementary education, consists of the first years of formal, structured education that occur during childhood.
**Elementary school, a school providing elementary or primary education. Historically, a school in the UK providing a basic education for the working classes.
* Fiction
** Sherlock Holmes: "Elementary, my dear Watson" (which does not appear in the books)
** Elementary, Dear Data is the third episode of the second season of .
* Music
** Elementary (album) is the third album released by The End, a Canadian mathcore band.
* Physics
** In particle physics, an elementary particle is a particle of which other, larger particles are composed.
** The elementary charge (symbol "e" or sometimes "q") is the electric charge carried by a single proton, or equivalently, the negative of the electric charge carried by a single electron.
* Mathematics
** Elementary arithmetic is the most basic kind of mathematics: it concerns the operations of addition, subtraction, multiplication, and division.
** Elementary algebra is the most basic form of algebra taught to students who are presumed to have no knowledge of mathematics beyond the basic principles of arithmetic.
** In computational complexity theory, the complexity class ELEMENTARY is the union of the classes in the exponential hierarchy.
** An elementary reflector is a vector that implements reflection (mathematics).
** Elementary symmetric polynomials are basic building block for symmetric polynomials.
** Elementary matrix transformations or elementary row and column transformations are linear transformations which are normally used in Gaussian elimination to solve a set of linear equations.
** In probability theory, an elementary event is a subset of a sample space that contains only one element.
**In differential algebra, an elementary function is a function built from a finite number of exponentials, logarithms, constants, one variable, and roots of equations through composition and combinations using the four elementary operations (+ − × ÷).
** Elementary class
** Elementary embedding
** Elementary group theory
** Elementary substructure