Definition:Order

Disambiguation

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Order may refer to:

• Set Theory: Another word for the cardinality of a set.

• Abstract Algebra: Order of an Algebraic Structure.

• Matrix Algebra: Order of a Square Matrix.

• Group Theory: Order of an Element in a Group.

• Number Theory: Order of an Integer: the least positive integer $c$ such that $a^c \equiv 1 \pmod n$.

• Analysis: Order of a Polynomial (otherwise known as its degree).

• Calculus: Order of a Derivative: the number of times a function has been differentiated.

• Differential Equations: Order of a Differential Equation: the highest order derivative that appears in that differential equation.

• Graph Theory: Order of a Graph: the number of vertices in a graph.

Also see

• Set Theory: Ordering.