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--- lecture_22_slides [2017/04/18 09:21] – rupert
+++ lecture_22_slides [2017/04/18 09:33] (current) – rupert
@@ Line 5: / Line 5: @@
 ===== Distance from $A$ to $\Pi$ =====
-  * $A$: any point in $\def\rt{\mathbb R^3}\rt$. $\Pi$: a plane with normal vector $\nn$.
+  * $\def\dist{\text{dist}}\def\cp#1#2#3#4#5#6{\left|\begin{smallmatrix}\vec\imath&\vec\jmath&\vec k\\#1&#2&#3\\#4&#5&#6\end{smallmatrix}\right|}\def\nn{\vec n}\def\c#1#2#3{\left[\begin{smallmatrix}#1\\#2\\#3\end{smallmatrix}\right]}\def\uu{\vec u}\def\vv{\vec v}\def\ww{\vec w}\def\bR{\mathbb R}\def\rt{\bR^3}A$: any point in $\def\rt{\mathbb R^3}\rt$. $\Pi$: a plane with normal vector $\nn$.
   * $\nn$ is direction of shortest path from $A$ to $\Pi$
   * Let $B$ be any point in the plane $\Pi$.{{ :dpp.jpg?nolink&600 |}}