HP 49g Graphing Calculator - Manual (Page 49)

To create an
array filled
with random integers
1. Select tlie Random Matrix comnaaird.
0 {Bm
CREATE RANM
2. Enter either:
• a list containing the dimensions of the desired random matrix:
{ rows, columns } or
® an existing array.
3. Press (ENTER).
The result is a random aiTay of the specified dimensions (or of the
dimensions of the specified array). The elements are integers within
the range -9 to 9.
Assembling matrices
To assemble a matrix
by
rows From a series of vectors
1. Select the Rows-to-Matrix command.
0 @1® CREATE ROW ROW^
2. Enter each vector in the order you want them to appear in the matrix.
Enter the row 1 vector first, then the row 2 vector, and so on,
separating each vector with a comma.
3. Enter the niunber of rows in the desired matrix.
4. Press (ENTE^.
The result is a matrix composed of the vectors you entered.
To assemble a matrix by columns From a series of vectors
1. Select the Columns-to-Matrix command.
0
fMATRiCEgl CREATE COLUMN COL^
2. Enter each vector in the order you want them to appear in the matrix.
Enter the column 1 vector first, then the colunui 2 vector, and so on,
separating each vector with a comma.
3. Enter the nmnber of colunms in the desired matrix.
4. Press®®.
The result is a matrix composed of the vectors you entered.
Page 5-8 Matrices and linear algebra