Using TeXLive 2015 on Linux Mint in usermode

$ tlmgr init-usertree
$ tlmgr option repository ftp://tug.org/historic/systems/texlive/2015/tlnet-final

will generate $HOME/texmf/, including subfolders tlpkg and web2c.

$ sudo apt install perl-tk
$ sudo apt install xzdec
$ tlmgr --gui

To use newtx package, the following should be installed:

  • newtx
  • kastrup
  • boondox

Use of newtx package:

Method 1

\usepackage{newtxtext}
\usepackage[cmintegrals]{newtxmath}

Method 2

\usepackage{esint,newtxtext,newtxmath}