Free Online Mathematics Dictionary. A-Z Math Terms and Definitions.
An oriental counting device and calculator.
A group in which the binary operation is commutative, that is, ab=ba for all elements a abd b in the group.
The x-coordinate of a point in a 2-dimensional coordinate system.
The positive value for a real number, disregarding the sign. Written |x|. For example, |3|=3, |-4|=4, and |0|=0.
A positive integer that is smaller than the sum of its proper divisors.
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