Processing math: 87%



IEVref:102-03-23ID:
Language:enStatus: backup
Term: magnitude (of a vector)
Synonym1: norm (of a vector)
[Preferred]
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Definition: for any vector U, non-negative scalar, usually denoted by |U|, equal to the non-negative square root of the scalar product or, in the case of a complex vector, of the Hermitian product of the vector by itself

NOTE 1 The magnitude of a vector U has the following properties:

  • U=0 if and only if |U|=0,
  • |αU|=|α||U| where α is a scalar,
  • |U+V||U|+|V| where V is any other vector.

NOTE 2 For a vector U in the three-dimensional Euclidean or Hermitian space with orthonormal base, the magnitude is given by |U|=|U1|2+|U2|2+|U3|2.

NOTE 3 The terms "Euclidean norm" and "Hermitian norm" may be used for the real or the complex case, respectively.

NOTE 4 The magnitude of a vector U is represented by |U| or by U; U MathType@MTEF@5@5@+= feaagKart1ev2aqatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbbjxAHX garuavP1wzZbItLDhis9wBH5garmWu51MyVXgarqqtubsr4rNCHbGe aGqk0di9Wr=fpeei0di9v8qiW7rqqrVepeea0xe9LqFf0xc9q8qqaq Fn0lXdHiVcFbIOFHK8Feea0dXdar=Jb9hs0dXdHuk9fr=xfr=xfrpe WZqaaeaaciWacmGadaGadeaabaGaaqaaaOqaa4WaauWaaOqaaKqzaf GaaCyvaaGccaGLjWUaayPcSdaaaa@3DA3@ is also used.


Publication date:2007-08
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