物理

世界是一个巨大的Alpha对吗♿♿♿

学术贴

暂时可以水平等到进O-box全给我通通删掉😡😡😡

开个坑之后慢慢填😋😋😋

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(适合xxs体质呢～)

有一天，春风拂面🌚，阳光明媚🌞，芒狗正开心的在一个平面直角坐标系内骑着车（别问我哪来的坐标系)(疑似是上次芒狗拉粑粑时拉出来的💦💦💦)

以这个坐标系而言，ta的运动轨迹为$f(x)$👍👍👍

可是，今天，邪恶的芒狗把集气瓶偷偷掳走了💦💦💦

ta选择在$x_0$处把ta沿自己的速度方向把瓶子扔掉以毁尸灭迹💦💦💦

这是，邪恶的帮凶Alpha出现了💦💦💦

ta打算在瓶子最终会到达的地方埋下木船被同款陷阱💦💦💦

假设芒狗扔掉瓶子时瓶子的运动轨迹是沿芒狗的运动方向沿直线的，那么这条直线就坑定有一个斜率👍👍👍

那么我们只要知道这个斜率，不就能让瓶子成功落入陷阱了吗😋😋😋

这时就有童鞋要问企鹅了🤓🤓🤓

企鹅企鹅🐧这怎么算啊？

当然是用我们小学二年级就学过的导数啊🤓🤓🤓

这个斜率，就是$f(x)$在$x_0$的导数♿♿♿

恭喜你！已经掌握了导数的几何意义no1版本！👍👍👍

但我们先不急着学习导数再去看看ta的几何意义no2版本🤓🤓🤓

(休息一下～