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Matrices 477
Argument
conventions
• For row# or column#, supply the number of the row
(counting from the top, starting with 1) or the number
of the column (counting from the left, starting with 1).
• The argument matrix can refer to either a vector or a
matrix.
Matrix functions
The matrix functions are available in the Matrix category
on the Math menu:
D Select Matrix Select a function.
Transpose Transposes matrix. For a complex matrix, TRN finds the
conjugate transpose.
TRN(matrix)
Example:
TRN returns
Determinant Determinant of a square matrix.
DET(matrix)
Example:
DET returns –2
RREF Reduced Row-Echelon Form. Changes a rectangular
matrix to its reduced row-echelon form.
RREF(matrix)
Example:
RREF returns
Create
Make Creates a matrix of dimension rows × columns, using
expression to calculate each element. If expression
contains the variables I and J, then the calculation for each
element substitutes the current row number for I and the
current column number for J. You can also create a vector
12
34
13
24
12
34
12– 1
34 1–
1 0 0.2
0 1 0.4–