– E-29 –
SIMULTANEOUS LINEAR EQUATIONS
Simultaneous linear equation with two unknowns (2-VLE) or
with three unknowns (3-VLE) may be solved using this function.
Q
2-VLE:
m20
m20
2
x
+ 3
y
= 4
2
®
3
®
4
®
5
x
+ 6
y
= 7
5
®
6
®
7
x
= ?
®
[
x
]
–1.
y
= ?
®
[
y
]
2.
det(D) = ?
®
[det(D)]
–3.
a
1
x
+
b
1
y
=
c
1
a
2
x
+
b
2
y
=
c
2
a
1
b
1
a
2
b
2
D =
m21
x
+
y
–
z
= 9
1
®
1
®
1
±®
9
®
6
x
+ 6
y
–
z
= 17
6
®
6
®
1
±®
17
®
14
x
– 7
y
+ 2
z
= 42
14
®
7
±®
2
®
42
x
= ?
®
[
x
]
3.238095238
y
= ?
®
[
y
]
–1.638095238
z
= ?
®
[
z
]
–7.4
det(D) = ?
®
[det(D)]
105.
a
1
x
+
b
1
y
+
c
1
z
=
d
1
a
2
x
+
b
2
y
+
c
2
z
=
d
2
a
3
x
+
b
3
y
+
c
3
z
=
d
3
a
1
b
1
c
1
a
2
b
2
c
2
a
3
b
3
c
3
D =
W
3-VLE:
m21
• If the determinant D = 0, an error occurs.
• If the absolute value of an intermediate result or calculation
result is 1
×
10
100
or more, an error occurs.
• Coefficients ( a
1
, etc.) can be entered using ordinary arithmetic
operations.
• To clear the entered coefficients, press
@c
.
• Pressing
®
when the determinant D is in the display
recalls the coefficients. Each time
®
is pressed, a coeffi-
cient is displayed in the order of input, allowing the entered
coefficients to be verified (by pressing
@®
, coeffi-
cients are displayed in reverse order.) To correct a particular
coefficient being displayed, enter the correct value and then
press
®
.
EL5060E_En0616.pm65
06/16/2004, 13:10
29
Summary of Contents for EL-5060
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