10-12 Matrices
8310MTRX.DOC TI-83 international English Bob Fedorisko Revised: 02/19/01 12:35 PM Printed: 02/19/01 1:36
PM Page 12 of 16
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NAMES MATH EDIT
1:det( Calculates the determinant.
2:TTransposes the matrix.
3:dim( Returns the matrix dimensions.
4:Fill( Fills all elements with a constant.
5:identity( Returns the identity matrix.
6:randM( Returns a random matrix.
7:augment( Appends two matrices.
8:Matr4list( Stores a matrix to a list.
9:List4matr( Stores a list to a matrix.
0:cumSum( Returns the cumulative sums of a matrix.
A:ref( Returns the row-echelon form of a matrix.
B:rref( Returns the reduced row-echelon form.
C:rowSwap( Swaps two rows of a matrix.
D:row+( Adds two rows; stores in the second row.
E:ärow( Multiplies the row by a number.
F:ärow+( Multiplies the row, adds to the second row.
det( (determinant) returns the determinant (a real number)
of a square matrix.
det(matrix)
T (transpose) returns a matrix in which each element (row,
column) is swapped with the corresponding element
(column, row) of matrix.
matrixT
dim( (dimension) returns a list containing the dimensions
({rows columns}) of matrix.
dim(matrix)
Note: dim(matrix)!L
n
:L
n
(1) returns the number of rows.
dim(matrix)!Ln:Ln(2) returns the number of columns.
Using the MATRX MATH Operations
MATRX MATH
Menu
det(
T (Transpose)
Accessing Matrix
Dimensions with
dim(