A community for students.
Here's the question you clicked on:
 0 viewing
anonymous
 4 years ago
Can anyone explain the reduction method used to calculate the determinant of a large square matrix?
anonymous
 4 years ago
Can anyone explain the reduction method used to calculate the determinant of a large square matrix?

This Question is Closed

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0It is credited to lewis carroll

TuringTest
 4 years ago
Best ResponseYou've already chosen the best response.1I did not know that^ interesting... basically all it is is using elimination to get the matrix to be uppertriangular, which makes the derivative easier to compute here are some good notes on the topic http://tutorial.math.lamar.edu/Classes/LinAlg/DeterminantByRowReduction.aspx

TuringTest
 4 years ago
Best ResponseYou've already chosen the best response.1the determinant easier to compute*

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0Thanks turing :D That is exactly what i needed

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0I think this is the one I was referring to. It is actually quite interesting

TuringTest
 4 years ago
Best ResponseYou've already chosen the best response.1Oh, this is a little different that the method I linked you to. Never seen this one before, but it seems cool.

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0yup never ever seen it either. I dont think it is used now a days

TuringTest
 4 years ago
Best ResponseYou've already chosen the best response.1The link you showed me is news to me do you want me to try to clear up anything about it in particular?

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0ummm can u just say in short what he did?

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0I have to write a lil paragraph abt it

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0only if u want to:D You dont have to

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0Turing I am not taking advantage over you:D All this while i am jotting down points

TuringTest
 4 years ago
Best ResponseYou've already chosen the best response.1Well like I said this is new to me but it looks like we started with our 4x4 matrix A, which we duplicated all the middle rows and columns of. we then broke up the resulting 6x6 matrix into 3 2x2 matrices which we took the determinant of. this gives us a 3x3 matrix which we did the same to: duplicate all middle rows and columns, which gives a 4x4 matrix. The central term 7 is duplicated in all matrices, so that factor will need to be divided out in the end. after breaking up our 4x4 into 4 2x2 matrices (which we take the det of) we have a 2x2 which we take the det of. remembering to divide out the extra factor of 7 we picked up earlier gives us the final det. Don't worry, this was interesting and new, thanks for showing me. I hope what I noticed about the problem helped, though since I am new to the method I'm not sure I can generalize it. Good luck!
Ask your own question
Sign UpFind more explanations on OpenStudy
Your question is ready. Sign up for free to start getting answers.
spraguer
(Moderator)
5
→ View Detailed Profile
is replying to Can someone tell me what button the professor is hitting...
23
 Teamwork 19 Teammate
 Problem Solving 19 Hero
 Engagement 19 Mad Hatter
 You have blocked this person.
 ✔ You're a fan Checking fan status...
Thanks for being so helpful in mathematics. If you are getting quality help, make sure you spread the word about OpenStudy.