Simultaneous Linear Equations - Sharp EL-5060 Operation Manual

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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
x + b
a
1
x + b
a
2
W 3-VLE: m21
x + b
a
1
x + b
a
2
x + b
a
3
• If the determinant D = 0, an error occurs.
• If the absolute value of an intermediate result or calculation
result is 1 × 10
• Coefficients ( a
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 ®.
2x + 3y = 4
5x + 6y = 7
x = ?
y = ?
det(D) = ?
x + y – z = 9
6x + 6y – z = 17
14x – 7y + 2z = 42
x = ?
y = ?
z = ?
det(D) = ?
y = c
1
1
y = c
2
2
y + c
z = d
1
1
1
y + c
z = d
2
2
2
y + c
z = d
3
3
3
100
or more, an error occurs.
, etc.) can be entered using ordinary arithmetic
1
m20
2 ® 3 ® 4 ®
5 ® 6 ® 7
® [x]
® [y]
® [det(D)]
m21
1 ® 1 ® 1 ±® 9 ®
6 ® 6 ® 1 ±® 17 ®
14 ® 7 ±® 2 ® 42
® [x]
® [y]
® [z]
® [det(D)]
D =
D =
– E-29 –
a
b
1
1
a
b
2
2
a
b
c
1
1
1
a
b
c
2
2
2
a
b
c
3
3
3
3.238095238
–1.638095238
–1.
2.
–3.
–7.4
105.

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