Casio FX-9750G, FX-9860GII SRow Echelon Form, SMatrix Inversion, SReduced Row Echelon Form, −21, [x–1], Example, Example, Example, Matrix A, Matrix A, Matrix A

*(MAT)(Trn)(Mat)

?T(A)U

SRow Echelon Form [OPTN]-[MAT]-[Ref]

This command uses the Gaussian elimination algorithm to find the row echelon form of a matrix.

Example To find the row echelon form of the following matrix:

1 2 3

Matrix A =

4 5 6

*(MAT)(E)(Ref)

(E)(Mat)?T(A)U

SReduced Row Echelon Form							[OPTN]-[MAT]-[Rref]
This command finds the reduced row echelon form of a matrix.
Example	To find the reduced row echelon form of the following matrix:
			2	−1	3	19
	Matrix A =	1		1	−5	−21
			0	4	3	0

*(MAT)(E)(Rref)

(E)(Mat)?T(A)U

•The row echelon form and reduced row echelon form operation may not produce accurate results due to dropped digits.

SMatrix Inversion				[x–1]
Example	To invert the following matrix:
	Matrix A =	1	2
			4
		3

*(MAT)(Mat)

?T(A) (x–1)U

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