Definition:Magnitude

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Definition

The magnitude (or size) of a quantity (either vector or scalar) is a measure of how big it is.


It is usually encountered explicitly in the context of vectors:

If $\mathbf v$ is the vector quantity in question, then its magnitude is denoted:

$\left|{\mathbf v}\right|$

or

$v$


Also defined as

In Euclidean number theory, the term magnitude is used to mean positive real number.


Also see


Sources