Editing Definite matrix (section)

== Sources ==
{{refbegin|25em|small=yes}}
* {{cite book
 |last1=Horn    |first1=Roger A.
 |last2=Johnson |first2=Charles R.
 |year=2013
 |title=Matrix Analysis |edition=2nd
 |publisher=[[Cambridge University Press]]
 |isbn=978-0-521-54823-6
}}
* {{cite book
 |first=Rajendra |last=Bhatia  |author-link=Rajendra Bhatia
 |year=2007
 |title=Positive Definite Matrices
 |series=Princeton Series in Applied Mathematics
 |isbn=978-0-691-12918-1
}}
* {{cite journal
 |last1=Bernstein |first1=B.
 |last2=Toupin   |first2=R.A.
 |year=1962
 |title=Some properties of the Hessian matrix of a strictly convex function
 |journal=[[Journal für die reine und angewandte Mathematik]]
 |volume=210 |pages=67–72
 |doi=10.1515/crll.1962.210.65
}}
{{refend}}