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Ref(, rref, Rowswap – Texas Instruments TI-84 User Manual

Page 246

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Chapter 10: Matrices

243

ref(, rref(

ref(, rref(

ref(, rref(

ref(, rref(

ref(

(row-echelon form) returns the row-echelon form of a real

matrix

. The number of

columns must be greater than or equal to the number of rows.

ref(matrix)

rref(

(reduced row-echelon form) returns the reduced row-echelon form of a real

matrix

.

The number of columns must be greater than or equal to the number of rows.

rref(matrix)

rowSwap(

rowSwap(

rowSwap(

rowSwap(

rowSwap(

returns a matrix. It swaps

rowA

and

rowB

of

matrix

.

rowSwap(matrix,rowA,rowB)