2-46
*(MAT)(Trn)(Mat)
?T(A)U
S Row 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:
Matrix A =
*(MAT)(E)(Ref)
(E)(Mat)?T(A)U
S Reduced 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:
Matrix A =
*(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.
S Matrix Inversion [x
–1
]
Example To invert the following matrix:
Matrix A =
*(MAT)(Mat)
?T(A)(
x
–1
)U
1 2 3
4 5 6
1 2 3
4 5 6
2 −1 3 19
1 1 −5 −21
0 4 3 0
2 −1 3 19
1 1 −5 −21
0 4 3 0
12
34
12
34
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