Open UlyssesZh opened 4 years ago
https://ulysseszh.github.io/math/2020/03/03/normal-field.html
Consider the function $y=f\left(\mathbf x\right)$, where the domain $D\subseteq\mathbb R^n$, and the function is differentiable everywhere.
https://ulysseszh.github.io/math/2020/03/03/normal-field.html
Consider the function $y=f\left(\mathbf x\right)$, where the domain $D\subseteq\mathbb R^n$, and the function is differentiable everywhere.