A = matrix([[3,-4,-1],[6,0,-1],[-3,13,-4]])
print A
R = matrix([[3,1,-2],[1,0,6],[-2,6,-4]])
print R
S = matrix([[0,-5,1],[5,0,-7],[-1,7,0]])
print S
print R+S
print A==R+S

Kreyszig-7.3-2 (last edited 2010-12-15 12:43:20 by sai9876543210abcd)