Question

JavaScript => public static function Dot(lhs: Vector2, rhs: Vector2): float;
C# => public static float Dot(Vector2 lhs, Vector2 rhs);

Parameters 参数

Description 描述

Dot Product of two vectors.

两个向量的点乘积。

Returns lhs . rhs.

返回lhs . rhs。

For normalized vectors Dot returns 1 if they point in exactly the same direction; -1 if they point in completely opposite directions; and a number in between for other cases (e.g. Dot returns zero if vectors are perpendicular).

如果他们指向相同的方向，归一化向量点乘返回1；如果他们指向完全相反的方向返回-1；在其他情况下在这两个数字之间(即，如果向量垂直，点乘返回0)。

For vectors of arbitrary length the Dot return values are similar: they get larger when the angle between vectors decreases.

对于任意长度的向量点乘返回值近似：向量之间的夹角越大时,他们得到更小。

vector2