a=matrix([[0,3],[4,6]])
print a
a.inverse()
var('a,b')
b=matrix([[a,b],[b,0]])
print b
b.inverse()
c=matrix([[3,4],[5,7]])
print c;c.inverse()

Strang-1.6-31-U (last edited 2010-12-18 05:23:23 by tejaswi)