Advanced Search

Question: showing that a vector x is in the rowspace of a matrix

Question:showing that a vector x is in the rowspace of a matrix

GPY 80 Maple
matrix vector linear-algebra rowspace
February 10 2015
1

I've got a vector x=[0.36,1.3279,1.6882] (1*3) obtained as x:=pseudoInverse(A)*b where A=[<2,4,1>|<1,-1,1>|<3,3,2>] where <2,4,1>,<1,-1,1>,<3,3,2> are the columns of A and b is [8,5,4](1*3). Now, when I find the rowspace of A using RowSpace(A) I get the row vectors <1,0,1> and <0,1,1>, neither of which are equivalent to x. How do I arrive at my result that x is in the rowspace?
Please Wait...