International
Tables for
Crystallography
Volume B
Reciprocal space
Edited by U. Shumeli

International Tables for Crystallography (2006). Vol. B, ch. 3.1, p. 348   | 1 | 2 |

## Section 3.1.3. Length of a vector

D. E. Sandsa*

aDepartment of Chemistry, University of Kentucky, Chemistry–Physics Building, Lexington, Kentucky 40506-0055, USA
Correspondence e-mail: sands@pop.uky.edu

### 3.1.3. Length of a vector

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By (3.1.2.1), the scalar product of a vector with itself is The length of v is, therefore, given by Computation of lengths in a generalized rectilinear coordinate system is thus simply a matter of evaluating the double summation and taking the square root.