Question

LU factorization
Ax=b where A=LU
LUx=b
L(Ux)=b Ux=y
L(y)=b solve for y then use y to solve for x

Answer 1

Is this a good simplification of the LU factorization

Answer 2

where L is the lower triangle matrix and U is the upper.

Answer 3

yeah, this has something to do with row eschelon form

Answer 4

Do you know why we would use this method instead of simply solving for x using A?

Answer 5

i recall reading about it in my textbook

Answer 6

decompositions are helpful in some instances but I cant recall specifics

Answer 7

I know it's used in electrical engineering but our prof doesn't want us to do that part ...guess just showing us another method to solve for x