Strang-6.1-11-U

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var('p,q,r')
r=matrix([[p,q],[q,r]])
print r
s=r*r;s
det(s)
print "r is positive definite for det not equal to zero"

Strang-6.1-11-U (last edited 2010-12-18 11:10:36 by sarada)

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