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An immediate consequence of a result already proved. Corollaries usually state more complicated theorems in a language simpler to use and apply.

A power of 10.

If A and B are equal by definition (i.e., A is defined as B), then this is written symbolically as A=B, A:=B, or sometimes A≜B.

The number of degrees of freedom in a problem, distribution, etc., is the number of parameters which may be independently varied.

A mathematical statement of the equivalence of two quantities. The equality "A is equal to B" is written A=B.

The head of a vector AB^-> is the endpoint B, i.e., the point at which the arrow is placed.

(1) Based on or involving trial and error. (2) Convincing without being rigorous.

A set of six.

Oriented in position perpendicular to up-down, and therefore parallel to a flat surface.

While an equality A=B states that two mathematical expressions are equal, an inequation A!=B states that two expressions are not equal.