Casio fx 991MS User Guide - Page 26
Simultaneous Equations - solve equation
 |
UPC - 079767134860
View all Casio fx 991MS manuals
Add to My Manuals
Save this manual to your list of manuals |
Page 26 highlights
x1= D R⇔I 0.25 x1= A r D R⇔I 0.75 i • Example 2: To solve the equation 8x2 - 4x + 5 = 0 (x = 0.25 ± 0.75 i) (Degree?) (a?) (b?) (c?) (x1 = 0.25 + 0.75i) (x2 = 0.25 - 0.75i) 2 8 = D 4 = 5 = ] k Simultaneous 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 now ns? 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 a 1? Arrow indicates direction you should scroll to view other 0. elements. Element value 24
-
1 -
2
-
3
-
4
-
5
-
6
-
7
-
8
-
9
-
10
-
11
-
12
-
13
-
14
-
15
-
16
-
17
-
18
-
19
-
20
-
21 -
22 -
23 -
24 -
25 -
26 -
27 -
28 -
29 -
30 -
31 -
32
-
33
-
34
-
35
-
36
-
37
-
38
-
39
-
40
-
41
-
42
 |
 |
24
0.25
x1=
0.75
x1=
i
R
⇔
I
R
⇔
I
D
D
A
r
•
Example 2:
To solve the equation
8
x
2
– 4
x
+ 5 = 0
(
x
=
0.25
±
0.75
i
)
(Degree?)
2
(
a
?)
8
=
(
b
?)
D
4
=
(
c
?)
5
=
(
x
1 = 0.25 + 0.75
i
)
]
(
x
2 = 0.25 – 0.75
i
)
Simultaneous Linear Equations with Two 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.
k
Simultaneous Equations
2
3
Unkno
w
ns?
Use this screen to specify 2 or 3 as the number of un-
knowns, and input values for each of the coefficients.
0.
a1?
Element value
Coefficient name
Arrow indicates
direction you
should scroll to
view other
elements.