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HP 48gx User Manual

HP 48gx
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Lesson
20:
Solving
a
System
of
Linear
Equations
The
HP
48
can
solve
a
system
of
linear
equations.
To
create
your
system
of
equations,
you
can
either
choose
them
from
among
those
you've
stored,
or
enter
them
directly.
As
you
solve
a
system
of
equations,
remember
that
a
system
of
equations
can
be
represented
by
a
single
matrix
equation
of
the
form
AX
=B:
Equation
Form
Matrix
Form
3z
+
y+
22
=
13
3
1
2
X
13
r+
y—
8z
—1
—
1
1
=8||y|=|-1
—z
+
2y
+52
=
13
-1
2 5
z
13
The
HP
48
makes
use
of
this
representation
to
solve
systems
of
linear
equations
rapidly
and
efficiently.
Example:
Solve
the
system
of
linear
equations
shown
above.
(This
example
assumes
that
the
current
display
mode
is
Std.)
Step
1:
Select
Zmlue
lim
sus...
from
the
SOLVE
menu.
Cove)
3
SOLVE
SYSTEM
A-H=B
Suns
®@
ok
—
ENTER
COEFFICIENTS
MATRIX
A
Step
2:
Enter
the
matrix
of
coefficients
(Matrix
A)
using
the
MatrixWriter.
@(/
1x)
3
ENTER)
1
(ENTER)
2
(ENTER)
(¥)
|
(ENTER)
|
(ENTER)
8
(°F)
(ENTER)
1
(FF)
(ENTER)
2
(ENTER)
5
(ENTER)
ENTER
ENTER
COEFFICIENTS
MATRIX
A
IER
(TTF
I
I
Solving
Equations
5-11

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HP 48gx Specifications

General IconGeneral
BrandHP
Model48gx
CategoryCalculator
LanguageEnglish

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