A9= matrix([[-3,6,-9],[1,-4,3],[2,5,-7]]) 
b9= vector([-46.725,19.571,-20.073]) 
x9= A9.solve_right(b9) 
print x9 

SageDays/Kreyszig-18.1-9 (last edited 2010-08-11 13:10:03 by SWATI AHUJA)