HP 49g Graphing Calculator - Manual (Page 48)

Advanced matrix operations
Creating special matrices
To create an array Riled with a given constant
1. Select the Constant Array command.
0 (WTRICESl
CREATE
CON
2. For the first argument of the command, enter either:
• a list containing the dimensions of the desired constant array:
{ roivs, cohmins } or
• an existing array.
.3. For the second argument, enter the constant that you want in the array.
4. Press®®).
The result is an array of the dimensions you entered (or of the
dimensions of the specified array) filled with the specified constant.
To create an identity matrix
1. Select the Identity Matrix command.
CREATEIDN
2. Enter either:
• a number representing the number of rows and columns you want
in the identity matrix or
• an existing array.
3. Press®®).
The result is an identity matrix of the specified dimensions (that is, a
square matrix with zero for all elements except the diagonal elements,
which are all 1).
Matrices and linear algebra Page 5-7