Extracting rows and columns, To extract a particular row from an array, To extract a particular column from an array – HP 48g Graphing Calculator User Manual
Page 170: Swapping rows and columns, To swap the location of two rows in an array, To swap the location of two columns in an array, Inserting rows and columns -5
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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
M F l T R R O W R O W - . 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.
14
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
(
ivith
I
M
h
T R
c o l
C O L - . 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
M F l T R R O W
(IMXT
) R S W P . 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
M F l T R C O L C S W P . The modified
array
is
returned to level 1.
14-6 Matrices and Linear Algebra