Topic:

Inverse Matrices

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Answers to Common Questions
Using a square matrix A, which is non-singular, then there exists an nxn matrix A-1 which is called the inverse of A. Go Cha Cha!
http://www.chacha.com/question/what-are-inverse-matric...   See entire page »
To find the inverse of a matrix, you simply multiply it by the identity matrix. That is, combine the two matrices into one and try to get the identity on the left hand side. Then the right hand side will become your inverse.
http://answers.ask.com/Science/Mathematics/how_do_you_...   See entire page »
･ 1 Set up the original matrix in augmented form with the identity matrix next to it. ･ 2 Row reduce the original matrix to form the identity matrix on its side. ･ 3 The row reductions will produce the inverse matrix on the opposite side of...
http://www.ehow.com/how_5175478_inverse-matrix.html?re...   See entire page »
Answers to Other Common Questions
Operate on the left-hand side, using Gauss/Jordan reduction and back-substitution to convert the left-hand side into the identity matrix. Perform the same transformations on the right-hand side that begins as an identity matrix. Once the le...
http://answers.yahoo.com/question/index?qid=20091209053...
･ 1. for an n by n matrix, append an n by n identity matrix ･ 2. then use gaussian elimination on this matrix ･ 3. eliminate the left half of the matrix, leaving only the part that used to be the identity matrix. ...
http://answers.yahoo.com/question/index?qid=20081107101...
Assume that a nonsingular matrix has two inverse matrices and then show that the two matrices are equal to each other.
http://www.mathhelpforum.com/math-help/linear-abstract-...
What makes you think there is such a formula? Have you looked at the inverse of ?
http://www.physicsforums.com/showthread.php?t=227060
Have you learned how to reduce a matrix to row echelon form before? If so, then take your matrix and reduce it to row echelon form. For each step you do, you do it to the identity matrix. What is left after row reducing is your inverse mat...
http://www.mathhelpforum.com/math-help/pre-calculus/452...
hi, I am also interested in LU decompsition. but , it seems much trouble to me. I found the result of LU decompsition may be not correct(Compare to that of Matlab). Do you meet such problem ? I am eagerily await your replay! thanks.
http://www.nr.com/forum/showthread.php?t=459
You need to show some work first. You say you've seen a proof already but are having trouble understanding it, well what is the proof and which part is giving you trouble. There is more than one way to do it. It's a good idea to attempt the...
http://www.physicsforums.com/showthread.php?t=134990