Inverting A Matrix; Finding The Determinant; Multiplying Two Arrays; Multiplying Two Matrices - HP -28S Manual

Inverting a Matrix
Because the matrix in level 1 is square, you can find its inverse.
.ClliJ
1: [[ 6 -2 -3 ]
[ -1 1 0 ]
[ -1 0 1 ]]
tmmmJIDaEIBmImmmD
Finding the Determinant
Because the matrix in level 1 is square, you can find its determinant.
DET
3:
2: -619
1: 1
tmmmJIDaEIBmImmmD
Multiplying Two Arrays
You can use the
0
function to multiply two matrices or a matrix and
a vector. (Use
CROSS
or
DOT
to multiply two vectors, as described
above.)
Multiplying Two Matrices
The order of the arguments is important when multiplying two matri-
ces. The number of
columns
in the matrix in level 2 must equal the
number of
rows in the matrix in level 1. For example, you can calcu-
late the following matrix product.
128 11: Vectors and Matrices
I