HP 49g Graphing Calculator - Manual (Page 139)

Example
To solve the following linear system:
2 x - 8 y + 32: = -5
:r - 4 y + 2 z = 3
3 x - y - b z = 4
1. Open the numeric solver and select
SOLVE
UN SYS
to display the Solve System input
form.
4.
2. Make sure that the cursor is in the A: field
and press
EDIT.
Matrix Writer opens, ready
for use. Create a coefficients matrix.
EDIT
Press {ENTER) to return to the Solve System
input form. The matrix that you created
appears in the A: field.
Place the cursor in the B: field and press
EDIT
to display Matrix Writer. Create a
constants matrix.
®EDIT ...
5. Press (E nter ) to return to the Solve System
input fonn. The matrix that you created
appears in the B: field.
En'tgr Hq-trix ft
4-1:
Entgr Matrix ft liS'iiHiiiiiMiiimiimMiiiHiai
l-l: -5.
6. Press ® to place the cursor in the X: field
and press
solve
.
The numeric solver solves
the linear system and writes the answers to
a matrix. The results matrix is displayed in
the X: field.
®
solve
SSOLME SVSTEH
CC2
[[-5.] C3.] C4.]]
Ent-zr C»>ri5i::]nt5 or pr
^ SOLVE SYSTEM
cca. ,-8. ,3. ] Cl.
E: CC-5. ] C3. ] C4. ]]
Enter 5<r SOLVE
liifilHTtiliHIllllia
Solving equations Page 6-9