线性代数

Games101

矩阵的转置

$$ A = (x, y) $$

$$ A^T = (y, x) $$

$$ cos\theta = \frac{ \vec{a} * \vec{b}}{||\vec{a}||* ||\vec{b}||}; $$

$$ cons\theta = \hat{a} * \hat{b} $$