x 1=

D

RI

 

 

0.25

 

 

 

 

 

 

 

A r

 

 

 

 

 

x 1=

D

RI

 

 

0.75i

 

 

 

 

Example 2: To solve the equation

 

8x2 – 4x + 5 = 0

(x = 0.25 ± 0.75 i)

(Degree?)

2

 

 

(a?)

8 =

 

 

(b?)

D 4 =

(c?)

5 =

 

 

(x1 = 0.25 + 0.75i)

]

 

 

(x2 = 0.25 – 0.75i)

 

 

 

kSimultaneous Equations

Simultaneous Linear Equations with Two Unknowns:

a1x + b1y = c1 a2x + b2y = c2

Simultaneous Linear Equations with Three Unknowns: a1x + b1y + c1z = d1

a2x + b2y + c2z = d2 a3x + b3y + c3z = d3

Entering the EQN Mode displays the initial simultaneous equation screen.

Unk nowns?

2 3

Use this screen to specify 2 or 3 as the number of un- knowns, and input values for each of the coefficients.

Coefficient name

 

Arrow indicates

 

 

 

 

 

 

direction you

 

 

 

 

 

 

should scroll to

 

a1?

 

 

 

view other

 

0.

 

 

elements.

 

 

 

 

 

 

 

Element value

 

24