Book
Linear Algebra
Author
Gilbert Strang
Edition
A=matrix([[1,1,2],[2,3,-1],[3,4,1]]) x,y,z=var('u,v,w') x=matrix([[u],[v],[w]]) c=var('c') b=matrix([[2],[5],[c]]) A.rank() Aug=matrix([[1,1,2,2],[2,3,-1,5],[3,4,1,c]]) Aug.rescale_row(1,-1) Aug.add_multiple_of_row(1,0,2) Aug.rescale_row(2,-1) Aug.add_multiple_of_row(2,0,3) Aug.rescale_row(1,-1) Aug.add_multiple_of_row(2,1,1) Aug[2,3]=0 solve(-c+7==0,c)
Solution by:
<Monica>, <Student>, <SNIST>