Reduced Row Echelon Form of a symbolic matrix.
Example:
A = sym([1 2 3; 2 3 4]); rref (A) ⇒ (sym 2×3 matrix) ⎡1 0 -1⎤ ⎢ ⎥ ⎣0 1 2 ⎦
Optional second output gives the indices of pivots.
See also: @sym/rank, @sym/null, @sym/orth.
Package: symbolic