HP 50g HP 50g_user's manual_English_HDPSG49AEM8.pdf - Page 116

Operations with matrices, Here are the matrices A22, B22, A23

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Operations with matrices Matrices, like other mathematical objects, can be added and subtracted. They can be multiplied by a scalar, or among themselves, and raised to a real power. An important operation for linear algebra applications is the inverse of a matrix. Details of these operations are presented next. To illustrate the operations we will create a number of matrices that we will store in the following variables. Here are the matrices A22, B22, A23, B23, A33 and B33 (The random matrices in your calculator may be different): In RPN mode, the steps to follow are: {2,2}` RANM 'A22'`K {2,2}` RANM 'B22'`K {2,3}` RANM 'A23'`K {2,3}` RANM 'B23'`K {3,2}` RANM 'A32'`K {3,2}` RANM 'B32'`K {3,3}` RANM 'A33'`K {3,3}` RANM 'B33'`K Page 9-3

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Page 9-3
Operations with matrices
Matrices, like other mathematical objects, can be added and subtracted.
They can be multiplied by a scalar, or among themselves, and raised to a
real power.
An important operation for linear algebra applications is the
inverse of a matrix.
Details of these operations are presented next.
To illustrate the operations we will create a number of matrices that we will
store in the following variables.
Here are the matrices A22, B22, A23,
B23, A33 and B33 (The random matrices in your calculator may be
different):
In RPN mode, the steps to follow are:
{2,2}
`
RANM
'A22'
`K
{2,2}
`
RANM
'B22'
`K
{2,3}
`
RANM
'A23'
`K
{2,3}
`
RANM
'B23'
`K
{3,2}
`
RANM
'A32'
`K
{3,2}
`
RANM
'B32'
`K
{3,3}
`
RANM
'A33'
`K
{3,3}
`
RANM
'B33'
`K