inclass9-system-cost - [1/7 Constructing an LU...

Info icon This preview shows pages 1–4. Sign up to view the full content.

View Full Document Right Arrow Icon
3/15/2016 [1/7] Constructing an LU Factorization - In-class work: Solver Costs - RELATE 1/1 Constructing an LU Factorization Let be a matrix. What is the cost (or timing relationship with ) of constructing an factorization with partial pivoting. A Rn×n n LU Choice* O(1) O(n) O(nlog±n) O(n2) O(n3) None of these
Image of page 1

Info icon This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
3/15/2016 [2/7] Given an LU Factorization - In-class work: Solver Costs - RELATE 1/1 Given an LU Factorization Let be a matrix. Suppose that we have computed an factorization of and have stored the elements of , , and . What is the cost of solving ? A Rn×n LU A n×n L U P Ax=b Choice* O(1) O(n) O(nlog±n) O(n2) O(n3) None of these
Image of page 2
3/15/2016 [3/7] Triangular A - In-class work: Solver Costs - RELATE 1/1 Triangular A Let be a matrix that is Upper Triangular.
Image of page 3

Info icon This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Image of page 4
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

What students are saying

  • Left Quote Icon

    As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

    Student Picture

    Kiran Temple University Fox School of Business ‘17, Course Hero Intern

  • Left Quote Icon

    I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

    Student Picture

    Dana University of Pennsylvania ‘17, Course Hero Intern

  • Left Quote Icon

    The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

    Student Picture

    Jill Tulane University ‘16, Course Hero Intern