Please help! How to use the vector z (the component of b orthogonal to ColA) to calculate the distance from b to ColA by using built-in function norm?

2 views (last 30 days)
Theory: When the columns of A are linearly independent, a vector p is the orthogonal projection of a vector b∉ Col A onto the Col A if and only if p x = Aˆ , where xˆ is the unique least-squares solution of Ax b = , or equivalently, the unique solution of the normal equations T T AA A x b = . Also, if p is the orthogonal projection of a vector b onto Col A, then there exists a unique vector z, such that, z bp = − and z is orthogonal to Col A

Answers (0)


Find more on Discrete Math in Help Center and File Exchange

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!