HP 49g Graphing Calculator - Manual (Page 164)

3. Press (ENTER) to move the object from the command line to the first cell
of the array.
The active cell now becomes 1-2 (that is, the cell at row 1 and column
2
).
4. Enter the remaining objects that are to go into row 1 of the array,
pressing (ENTER) after each to move it from the command line to the next
available cell.
5. When you have typed the last object in the first row of the array, press
( t ) to move to the second row of the array and tlren press © until cell
2-1 becomes the active cell (that is, the first cell in the second row).
6. Enter the objects that are to appear in the second row of your array,
pressing (ENTER) after each object.
Note that the ciu'sor now automatically moves to the first cell of the
next row after you enter an object in the last coliunn of a row.
If you need to add more objects to a row you have already created, use
the an'ow keys to position your cursor in the appropriate blank cell
and enter a new object. See “Quickly moving through an array” below
to learn how to quickly move through large arrays.
7. When you have entered all the objects that will comprise your array,
press (EN]3).
Matrix Writer closes and the array you have created appears on the
default display screen.
The Matrix Writer function-key menu is explained in detail in the Pocket
Guide and the Advanced, User’s Guide.
Using the command line
This method is suitable only for creating small arrays. For large arrays,
use Matrix Writer (as described in the previous section).
1. Press
0 0
to enter an-ay delimiters.
2. Press
0 0
to enter row delimiters.
3. Enter the row of elements, pressing
0 O
to separate each element.
4. If you want to enter more rows, continue from step 5 below; otherwise
press (ENTER) to create the an'ay.
5. Press ® to move the ciu-sor to the right of the row delimiter.
6. Repeat from step 2.
Page 8-8 Vectors, lists, arrays, and matrices