HP 49g+ User Manual page 126

2 3
A 1
2
This system has the same number of equations as of unknowns, and will be
referred to as a square system. In general, there should be a unique solution
to the system. The solution will be the point of intersection of the three planes
in the coordinate system (x
To enter matrix A you can activate the Matrix Writer while the A: field is
selected. The following screen shows the Matrix Writer used for entering
matrix A, as well as the input form for the numerical solver after entering
`
matrix A (press in the Matrix Writer):
˜
Press to select the B: field. The vector b can be entered as a row vector
with a single set of brackets, i.e.,
After entering matrix A and vector b, and with the X: field highlighted, we can
press to attempt a solution to this system of equations:
@ S O L V E !
A solution was found as shown next.
5 x
1
3 8 , x x ,
2
2 4 x
3
, x , x ) represented by the three equations.
1 2 3
[ 1 3 , - 1 3 , - 6 ]
13
and b 13 .
6
.
@ @ @ O K @ @ @
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