単位ベクトル
1. Unit vectorIn mathematics, a unit vector in a normed vector space is a vector whose length is 1 (the unit length). A unit vector is often denoted by a lowercase letter with a "hat", like this: (pronounced "i-hat"). In Euclidean space, the dot product of two unit vectors is simply the cosine of the angle between them. This follows from the formula for the dot product, since the lengths are both 1. The normalized vector or versor of a non-zero vector is the unit vector codirectional with, i.e.
Read “Unit vector” on English Wikipedia
Read “単位ベクトル” on Japanese Wikipedia
Read “Unit vector” on DBpedia
Read “Unit vector” on English Wikipedia
Read “単位ベクトル” on Japanese Wikipedia
Read “Unit vector” on DBpedia
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