From: Michael Orlitzky <michael@orlitzky.com>
Date: Thu, 29 Nov 2018 03:36:00 +0000 (-0500)
Subject: mjo-linear_algebra.tex: add the Moore-Penrose \pseudoinverse.
X-Git-Url: http://gitweb.michael.orlitzky.com/?p=mjotex.git;a=commitdiff_plain;h=a9d942d6d7226cdf87be5b8cef9743d30d75ce06

mjo-linear_algebra.tex: add the Moore-Penrose \pseudoinverse.
---

diff --git a/mjo-linear_algebra.tex b/mjo-linear_algebra.tex
index 02e1d12..aa0b05e 100644
--- a/mjo-linear_algebra.tex
+++ b/mjo-linear_algebra.tex
@@ -37,6 +37,10 @@
 % specialized to real matrices.
 \newcommand*{\transpose}[1]{ #1^{T} }
 
+% The Moore-Penrose (or any other, I guess) pseudo-inverse of its
+% sole argument.
+\newcommand*{\pseudoinverse}[1]{ #1^{+} }
+
 % The trace of an operator.
 \newcommand*{\trace}[1]{ \operatorname{trace}\of{{#1}} }