20021201
To display the upper triangular matrix
Menu Item: [VAR][CAP][R][EXE]
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u swap
Function: Swaps two rows of a matrix.
Syntax: swap (Mat, row number-1, row number-2 [
)
]
Example: To swap row 1 with row 2 of the matrix [[1,2] [3,4]]
Menu Item: [Action][Matrix-Calculation][swap]
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u mRow
Function: Multiplies the elements of a specific row in a matrix by a specific expression.
Syntax: mRow (Exp, Mat, row number [
)
]
Example: To multiply row 1 of the matrix [[1,2] [3,4]] by x
Menu Item: [Action][Matrix-Calculation][mRow]
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u mRowAdd
Function: Multiplies the elements of a specific row in a matrix by a specific expression,
and then adds the result to another row.
Syntax: mRowAdd (Exp, Mat, row number-1, row number-2 [
)
]
Example: To multiply row 1 of the matrix [[1,2] [3,4]] by x, and then add the result to row 2
Menu Item: [Action][Matrix-Calculation][mRowAdd]
2-7-32
Using the Action Menu
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