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RREF calculator

Reduce a matrix to reduced row echelon form for linear algebra work.

How to use this calculator

Change the matrix entries inside rref⁡(…)\operatorname{rref}(\ldots). Use an augmented matrix when analyzing a linear system.

Tap the math below to edit it and see the result. Once a result is ready, press Tab on a hardware keyboard to accept it. Outside a matrix, Return completes the line; the phone math keyboard has the same Return action.

Try it here

rref⁡[2004]\operatorname{rref}\left[\begin{array}{cc}2&0\\0&4\end{array}\right]

Interactive tools require JavaScript. You can read the guide and example without it.

What to know

The result is a reduced matrix, not a narrated row-by-row derivation.

Mathlean combines visual mathematical input with computation and canvas tools. Results depend on the expression and available engine support; check important answers independently.

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