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authorYuchen Pei <me@ypei.me>2019-03-20 10:43:00 +0100
committerYuchen Pei <me@ypei.me>2019-03-20 10:43:00 +0100
commit2a977610502fd376ec4dec318fb5222bfbcbe4ee (patch)
tree60b5c0e9f8c47e307df633133bcee8c4e6493a9b
parentfe08c00731ed4b54a0656511009b8c9f4f5f8198 (diff)
more notations
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@@ -47,3 +47,7 @@ elsewhere.
have the same distribution.
- $\mathbb E f(\xi)$: expectation of $f(\xi)$.
- $\mathbb P(A)$: probability of event $A$.
+- $a \wedge b$: $\min\{a, b\}$.
+- $a \vee b$: $\max\{a, b\}$.
+- $(\alpha)_+$: the positive part of $\alpha$, i.e. $\alpha \vee 0$.
+- $(\alpha)_-$: the negative part of $\alpha$, i.e. $(- \alpha)_+$.