1980 matrices are selected in L
Error in lines 1-1
Traceback (most recent call last):
File "/cocalc/lib/python2.7/site-packages/smc_sagews/sage_server.py", line 1044, in execute
exec compile(block+'\n', '', 'single', flags=compile_flags) in namespace, locals
File "", line 1, in <module>
File "/ext/sage/sage-8.2_1604/local/lib/python2.7/site-packages/sage/rings/polynomial/polynomial_ring_constructor.py", line 648, in PolynomialRing
return _multi_variate(base_ring, names, **kwds)
File "/ext/sage/sage-8.2_1604/local/lib/python2.7/site-packages/sage/rings/polynomial/polynomial_ring_constructor.py", line 798, in _multi_variate
R = constructor(base_ring, n, names, order)
File "/ext/sage/sage-8.2_1604/local/lib/python2.7/site-packages/sage/rings/polynomial/multi_polynomial_ring.py", line 137, in __init__
MPolynomialRing_generic.__init__(self, base_ring, n, names, order)
File "sage/rings/polynomial/multi_polynomial_ring_generic.pyx", line 67, in sage.rings.polynomial.multi_polynomial_ring_generic.MPolynomialRing_generic.__init__ (build/cythonized/sage/rings/polynomial/multi_polynomial_ring_generic.c:3516)
raise TypeError("The base ring %s is not a commutative ring" % base_ring)
TypeError: The base ring Quaternion Algebra (2, 3) with base ring Rational Field is not a commutative ring