1849.sagews

x^2+y^2

Traceback (most recent call last): File "<stdin>", line 1, in <module> File "_sage_input_2.py", line 9, in <module> exec compile(ur'open("___code___.py","w").write("# -*- coding: utf-8 -*-\n" + _support_.preparse_worksheet_cell(base64.b64decode("eF4yK3leMg=="),globals())+"\n"); execfile(os.path.abspath("___code___.py"))' + '\n', '', 'single') File "", line 1, in <module> File "/tmp/tmpkpDfjn/___code___.py", line 3, in <module> exec compile(ur'x**_sage_const_2 +y**_sage_const_2 ' + '\n', '', 'single') File "", line 1, in <module> NameError: name 'y' is not defined

$x^2+\beta_2$

3*7

[1] 21

\documentclass{article}
\title{test document}
\author{zhaoshiliang}
\begin{document}
This is a test document
\end{document}