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:
T
Transposes 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: Matr
4
list(
Stores a matrix to a list.
9: List
4
matr(
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:
ä
row(
Multiplies the row by a number.
F:
ä
row+(
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
.
matrix
T
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
)
!
L
n
:L
n
(2)
returns the number of columns.
Using the MATRX MATH Operations
MATRX MATH
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det(
T
(Transpose)
Accessing Matrix
Dimensions with
dim(
