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Table Of Contents
20050501
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u subMat
Function: Extracts a specific section of a matrix into a new matrix.
Syntax: subMat (Mat [,start row] [,start column] [,end row] [,end column] [
)
]
• “1” is the default when you omit “[, start row]” and “[, start column]”.
• The last row number is the default when you omit “[, end row]”.
• The last column number is the default when you omit “[, end column]”.
Example: To extract the section from row 2, column 2, to row 3, column 3 from the matrix
[[1,4,7] [2,5,8] [3,6,9]]
Menu Item: [Action][Matrix-Create][subMat]
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u diag
Function: Returns a one-row matrix containing the elements from the main diagonal of a
square matrix.
Syntax: diag (Mat[
)
]
Example: To extract the diagonal elements of the matrix [[1,2] [3,4]]
Menu Item: [Action][Matrix-Create][diag]
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u matToList
Function: Transforms a specific column of a matrix into a list.
Syntax: matToList (Mat, column number [
)
]
Example: To transform column 2 of the matrix [[1,2] [3,4]] into a list
Menu Item: [Action][Matrix-Create][matToList]
2-7-28
Using the Action Menu