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--- lecture_17b [2015/04/01 11:37] – rupert
+++ lecture_17b [2015/04/02 10:03] (current) – [Examples] rupert
@@ Line 58: / Line 58: @@
 ==== Examples ====
-  * \|\m{4\\3}\|=\sqrt{4^2+3^2}=\sqrt{16+9}=\sqrt{25}=5$
+  * $\left\|\m{4\\3}\right\|=\sqrt{4^2+3^2}=\sqrt{16+9}=\sqrt{25}=5$
-  * \|\m{1\\0\\-2\\3}\|=\sqrt{1^2+0^2+(-2)^2+3^2}=\sqrt{1+0+4+9}=\sqrt{14}$
+  * $\left\|\m{1\\0\\-2\\3}\right\|=\sqrt{1^2+0^2+(-2)^2+3^2}=\sqrt{1+0+4+9}=\sqrt{14}$
 ==== Exercise ====