Hp 48g Graphing Calculator Instrukcja Użytkownika Pobierz pdf (Strona 170)

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101

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.

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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