From cabf89f8e9b033a0a0d0e875886928f227798413 Mon Sep 17 00:00:00 2001
From: Michael Orlitzky <michael@orlitzky.com>
Date: Tue, 7 Mar 2017 18:52:39 -0500
Subject: [PATCH] Add S^{n}, the space of symmetric n-by-n matrices.
---
mjo-common.tex | 4 ++++
mjo-cone.tex | 2 +-
2 files changed, 5 insertions(+), 1 deletion(-)
diff --git a/mjo-common.tex b/mjo-common.tex
index 61ea7c4..1e3c69f 100644
--- a/mjo-common.tex
+++ b/mjo-common.tex
@@ -78,6 +78,10 @@
\mathbb{C}\if\detokenize{#1}\detokenize{1}{}\else^{#1}\fi
}
+% The space of symmetric n-by-n matrices.
+\providecommand*{\Sn}[1][n]{
+ \mathcal{S}\if\detokenize{#1}\detokenize{1}{}\else^{#1}\fi
+}
%
% Basic set operations
diff --git a/mjo-cone.tex b/mjo-cone.tex
index b770d75..b7bcdab 100644
--- a/mjo-cone.tex
+++ b/mjo-cone.tex
@@ -24,7 +24,7 @@
\newcommand*{\Lnplus}[1][n]{ \mathcal{L}^{{#1}}_{+} }
% The PSD cone in a space of symmetric matrices.
-\newcommand*{\Snplus}[1][n]{ \mathcal{S}^{{#1}}_{+} }
+\newcommand*{\Snplus}[1][n]{ \Sn[#1]_{+} }
% The PSD cone in a space of Hermitian matrices.
\newcommand*{\Hnplus}[1][n]{ \mathcal{H}^{{#1}}_{+} }
--
2.45.3