Recent content by PencilnPaper

rsa58, I don't know what you are asking. What does P stand for in your equation?

OK, duh...I think I just figured out the rest (guess i had to actually multiply it all out to see what happens) so my lower triangular matrix turns into: \left(\begin{array}{ccc}{1&0&0\\2&1&0\\3&3/2&1\end{array}\right) And then when I multiply this lower triangular with the previous...

I'm still a little fuzzy, so can I use an example? Let's say I have the coefficient matrix: \left(\begin{array}{ccc}{1&-1&3\\2&0&1\\3&0&0\end{array}\right) I know I can perform 3 elementary operations to get the following...

Homework Statement My book is awful and I need clarification on a few things regarding LU factorization: -If I am trying to express matrix A as a product of its upper triangular matrix (U) and the lower triangular matrix (L). I understand that I should find U first by Gauss-Jordon...

Thanks, but, YIKES! That link was exactly the same question as on our test. I didn't look at your response to that question because I don't want to get into any trouble. I've looked into three calculus books and none of them explain this concept well enough. I was hoping to get some help with...

Homework Statement I am confused about how to find a sum of a power series, especially when it contains factorials and I can't quite get it to look like a geometric series. Is it the same thing as finding a limit (and then I would follow the various tests for convergence of the different...