% t
NAMES
% t
displays the matrix
NAMES
menu, which shows the dimensions of the
matrices and lets you use them in calculations. The row and column dimension of a
matrix can be 1
{
row
{
3 and 1
{
column
{
3.
1:[A]
Definable matrix [A].
2:[B]
Definable matrix [B].
3:[C]
Definable matrix [C].
4:[Ans]
Last matrix result (
[Ans]=
row
×
column
)
, or
last vector result (
[Ans] dim=
n
).
Not editable.
Note:
Cell values can be toggled. To view the full
precision or exact format, highlight the cell.
5:[I2]
2×2 identity matrix (not editable).
6:[I3]
3×3 identity matrix (not editable).
% t
MATH
% t "
displays the matrix
MATH
menu, which lets you perform the following
operations:
1:Determinant Determinant of a square matrix.
Syntax:
det(
squarematrix
)
2:
T
Transpose
Transpose of a matrix.
Syntax:
matrix
T
3:Inverse
Inverse of a square matrix.
Syntax:
squarematrix
–1
4:ref reduced
Row echelon form.
Syntax:
ref(
matrix
)
5:rref reduced Reduced row echelon form.
Syntax:
rref(
matrix
)
% t
EDIT
% t !
displays the matrix
EDIT
menu, which lets you define or edit matrix [A],
[B], or [C].
Note:
Press
r
to toggle the number format in a cell as needed.
Example
Define matrix [A] =
1 2
3
4
Calculate the determinant, transpose, inverse, and rref of [A].
Math Tools
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