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\newcommand{\Bold}[1]{\mathbf{#1}}\left(\right)
\newcommand{\Bold}[1]{\mathbf{#1}}\left[\alpha_{1}, \alpha_{2}, \alpha_{3}\right]
\newcommand{\Bold}[1]{\mathbf{#1}}\left(\right)
\newcommand{\Bold}[1]{\mathbf{#1}}\left(\right)
\newcommand{\Bold}[1]{\mathbf{#1}}\left(\right)
[ 0 1.00000000000000 0]
[ 0 0 1.00000000000000]
[1.00000000000000 0 0]
\newcommand{\Bold}[1]{\mathbf{#1}}r_{11} = r_{11}
\newcommand{\Bold}[1]{\mathbf{#1}}\left[\left(\right), \left(\right), \left(\right), \left(\right), \left(\right), \left(\right), \left(\right)\right]
\newcommand{\Bold}[1]{\mathbf{#1}}\left(\right)
\newcommand{\Bold}[1]{\mathbf{#1}}-\frac{1}{2} \, r_{11}^{2} \overline{\alpha_{1}} D[0]\left({\rm conjugate}\right)\left(r_{11}\right) - r_{11} \overline{\alpha_{1}} \overline{r_{11}} + \frac{1}{2} \, \alpha_{1}
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "_sage_input_8.py", line 10, in <module>
exec compile(u'open("___code___.py","w").write("# -*- coding: utf-8 -*-\\n" + _support_.preparse_worksheet_cell(base64.b64decode("W1NbMF1bMF09PTBd"),globals())+"\\n"); execfile(os.path.abspath("___code___.py"))' + '\n', '', 'single')
File "", line 1, in <module>
File "/tmp/tmp9t6DtK/___code___.py", line 3, in <module>
exec compile(u'[S[_sage_const_0 ][_sage_const_0 ]==_sage_const_0 ]' + '\n', '', 'single')
File "", line 1, in <module>
NameError: name 'S' is not defined