IEC 60050 - International Electrotechnical Vocabulary


IEVref:	102-03-29	ID:
Language:	en	Status: Standard

Term:	angle, <between two vectors>
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Definition:	real number ϑ such that 0 ≤ ϑ ≤ π, the cosine of which is the ratio of the scalar product of two given real vectors U and V to the product of their magnitudes $ϑ = arccos \frac{U \cdot V}{\| U \| \cdot \| V \|}$ Note 1 to entry: The angle of two vectors is always defined because the inequality $\| U \cdot V \| \leq \| U \| \cdot \| V \|$ is valid for the scalar product.
Publication date:	2008-08
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Internal notes:	2017-02-20: Editorial revisions in accordance with the information provided in C00019 (IEV 102) - evaluation. JGO
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