Sharp EL-5060

– 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
2x + 3y = 4 2 ® 3 ® 4 ®
5x + 6y = 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 ®
6x + 6y – z = 17 6 ® 6 ® 1 ±® 17 ®
14x – 7y + 2z = 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, 13:1029