点积
dot product The dot product of two vectors is a scalar defined as $\vec{a} \cdot \vec{b} = \|\vec{a}\|\|\vec{b}\|\cos\theta$.
CSCA 数学 考试术语
dot product The dot product of two vectors is a scalar defined as $\vec{a} \cdot \vec{b} = \|\vec{a}\|\|\vec{b}\|\cos\theta$.
CSCA 数学 考试术语