Solving systems of linear equations, Solving systems of linear equations -8, Example – HP 39g Graphing Calculator User Manual
Page 182: I 7 i, Select the m2 variable and create a new matrix, Fct] 1 pente^ 4 t
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Solving systems of linear equations
Example
Solve the following linear system:
2.r + 3y + 4z = 5
X + y - z = 7
4x-y + 2z = 1
1. Open the Matrix catalog and choose to create a vector in
the Ml variable.
|sHiFT|Mxrm EH2I
[T|[
ìn
W|
il!
M3
M4
M5
CREATE NEW,
Real matrix
Complex
matrix
Complex oector
2. Create the vector of the constants in the linear system.
5 I
ENTER
I 7 I
ENTE"^
ENTER
3. Return to the Matrix
catalog. The vector you
created is listed as Ml.
I SHIFflM/tri?«
^MATEIK CATALOG
Mi 3 REAL VECTDR
.43KE I
M2
IKl REAL MATRIK
OKB
M3
IKl
real
MATRIK
OKE
M4
1K2 REAL MAIRI*
OKP
M5
EKE REAL MATRIK
.04KB
W
4. Select the M2 variable and create a new matrix.
0CI12!
Select
Real
matrix
m
Ml
m
M3
M4
M5
CREATE NE M ..
è
Real matrix
Real vector
Complex matrix
Complex vector
3a
ÌB
E ^
iroommaflaaBi
Eiai
5. Create a new matrix and enter the equation coefficients.
2|
enter
13|
ente
^
41
enter
!
11
enter
11 I
enter
!
fcT] 1 pENTE^ 4 T
enter
!
|!2T|l(BTfE^2|ENTER!
ME
1
2
3
1 E
3
4
?
1
1
-1
3
-1
E
12-8
Matrices