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( x 2 = -1)
( x 3 = 1)
• If a result is a complex number, the real part of the first solution appears
first. This is indicated by the "R↔I" symbol on the display
. Press
(Re⇔Im) to toggle the display between the real part and imaginary
part of a solution.
Example 2: T
o solve the equation
8 x
2
- 4 x + 5 = 0 ( x = 0.25 ± 0.75 i )
(Degree?) 2
( a ?) 8
( b ?) 4
( c ?) 5
( x 1 = 0.25 + 0.75 i )
( x 2 = 0.25 - 0.75 i )
Simultaneous Equations
Simultaneous Linear Equations with T
wo Unknowns:
a
1
x + b
1
y = c
1
a
2
x + b
2
y = c
2
Simultaneous Linear Equations with Three Unknowns:
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
Entering the EQN Mode displays the initial simultaneous equation screen.
Use this screen to specify 2 or 3 as the number of unknowns, and input
values for each of the coef
ficients.
57
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