內積 :::info 內積出來是常量 ::: 有兩向量$\vec{m}, \vec{n}$ $\vec{m} = (x_0, y_0, z_0)$ $\vec{n} = (x_1, y_1, z_1)$ $\vec{m} \cdot \vec{n} = x_0 x_1 + y_0 y_1 + z_0 z_1$
6/14/2024分治
1/22/2024:::sp
7/13/2023Physics 動量 $P = mv\quad$ $v = a * \Delta T$ $P = mv$ , $F = ma \implies m = \frac{F}{a}$ $\implies P = \frac{F}{a} * v$ $\implies P = F * \Delta T$ 衝量 $\vec{J} = \vec{F} * \Delta t$
5/8/2023or
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