- #1
epkid08
- 264
- 1
Homework Statement
Okay so I'm supposed to find the least squares solution of a set of equations, which I can do, but it adds that I must use QR decomposition. I don't really know how to apply QR decomposition to this problem.
Problem: Find the least squares solution of
[tex]x_1 + x_2 = 4[/tex]
[tex]2x_1+x_2 = -2[/tex]
[tex]x_1 - x_2 = 1[/tex]
Use your answer to find the point on the plane spanned by (1,1,2) and (1,-3,1) that is closest to (1,4,3).