#-*- mode: org -*-
#+TITLE: test
#+AUTHOR: Partha

#+latex_header:\usepackage{Documents/tex/essentials/symbols}

* first section

this is my trial for /OER/

Can I use \LaTeX ? Let us try: $f: A\rightarrow B$ is a function

** use of more

$\xymatrix{ {A} \ar@{o->}[r] & {B} }$

\Arr{f}{A}{B}