Sharp EL-5160S, Operation Manual

Page: 173 / 188

E-62
Solving simultaneous linear equations
1. Press
b 6 0
or
b 6 1
.
2. Enter the value for each coeffi cient (
a
1
, etc.).
• Coeffi cients can be entered using ordinary
arithmetic operations.
• To clear the entered coeffi cient, press
j
.
• Press
u
or
d
to move the cursor up or
down through the coeffi cients. Press
@ u
or
@ d
to jump to the fi rst or last coeffi cient.
3. When all coeffi cients have been entered, press
e
to solve the equation.
• While the solution is displayed, press
e
or
j
to return to the coeffi cient entry display. To
clear all the coeffi cients, press
@ Z
.
{
2 x
+
3 y
=
4
5 x
+
6 y
=
7
b 6 0
2
e
3
e
4
e
5
e
6
e
7
x
=
?
y
=
?
det(D)
=
?
e
X
:
Y
:
D
:
-
1
.
2
.
-
3
.
{
x
+
y
−
z
=
9
6 x
+
6 y
−
z
=
17
14 x
−
7 y
+
2 z
=
42
b 6 1
1
e
1
e S
1
e
9
e
6
e
6
e S
1
e
17
e
14
e S
7
e
2
e
42
x
=
?
y
=
?
z
=
?
det(D)
=
?
e
X
:
Y
:
Z
:
D
:
3
.
238095238
-
1
.
638095238
-
7
.
4
105
.