Hp 48g Graphing Calculator Uživatelský manuál Strana 170

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Extracting Rows and Columns
To extract a particular row from an array:
1. Enter the array onto the stack.
2. Enter the row number (or element number if the array is a vector)
that you wish to extract.
3. Press [mth 1 MFlTR ROW ROW- . The extracted row vector
(or element) is returned to level 1 and the contracted array—with
the row or element deleted—is returned to level 2.
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To extract a particular column from an array:
1. Enter the array onto the stack.
2. Enter the column number (or element number if the array is a
vector) that you wish to extract.
3. Press (ivithI MhTR col COL- . The extracted column
vector (or element) is returned to level 1 and the contracted
array—with the column (or element) deleted—is returned to
level 2.
Swapping Rows and Columns
To swap the location of two rows in an array:
1. Enter the array onto the stack. If the array is a vector, it is
considered to be a column vector.
2. Enter the two row numbers that are to be swapped.
3. Press [mth 1 MFlTR ROW (IMXT) RSWP . The modified array is
returned to level 1.
To swap the location of two columns in an array:
1. Enter the array onto the stack. If the array is a vector, it is
considered to be a row vector.
2. Enter the two column numbers that are to be swapped.
3. Press fMTH 1 MFlTR COL CSWP . The modified array is
returned to level 1.
14-6 Matrices and Linear Algebra
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