A=matrix([[1,16,0], [2,20,2], [0,4,1]])
print A
~A

print matrix(RR,-3/5,4/5,-8/5],[1/10,-1/20,1/10],[-2/5,1/5,3/5)

A = matrix(RR,-3/5,4/5,-8/5],[1/10,-1/20,1/10],[-2/5,1/5,3/5) print A A = matrix(CDF,-3/5,4/5,-8/5],[1/10,-1/20,1/10],[-2/5,1/5,3/5) print A

Kreyszig-18.4-5 (last edited 2010-12-15 13:02:23 by 172)