Please give your new threads different titles if you start a number at once.

It would be nice to be able to tell which is which

RonL

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- May 11th 2006, 06:29 PM #1

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## Algebra3

In the Gauss-Jordan algorithm, the three elementary row operations that may be performed on an n x m matrix are:

(i) Interchange two rows

(ii) Multiply a row by a nonzero constant

(iii) Add a multiple of one row to another row

Are these threeoperations independent, or can one of them be performed using ony the other two operations?

Thanks very much....

- May 11th 2006, 11:46 PM #2

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- May 11th 2006, 11:52 PM #3

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Originally Posted by**suedenation**

1. Using just ii and iii you cannot achive i, for at least one matrix

2. Using just i and iii you cannot achive ii, for at least one matrix

3. Using just i and ii you cannot achive iii, for at least one matrix

Use the 2x2 or 3x3 identity matrix as your example matrix.

RonL