Elementary Algebra
Elementary algebra introduces the basic rules and operations of algebra, one of the main branches of mathematics. Whereas arithmetic deals with specific numbers and operators (e.g +,-,*,/) (e.g. 3 + 2 = 5), algebra introduces variables, which are letters that represent non-specified numbers (e.g. 3a + 2a = 5a). Algebra also defines the rules and conventions of how it is written (called algebraic notation). For example, the multiplication symbol, is sometimes replaced with a dot, or even omitted completely, because its context makes its use obvious (e.g. 3 × a may be written 3a).
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Famous quotes containing the words elementary and/or algebra:
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