7
04
Solutions to quadratic equations
The solutions to the quadratic equation
are given by the formula:
In particular, when
two real solutions exist,
when
= there is just one real solution and
when
there are two complex solutions
Program
？→ Ａ：？→ Ｂ：？→ Ｃ：Ｂ
２
－４ ＡＣ ＝０⇒ Ｇｏｔｏ １：
（－ Ｂ －√（Ｂ
２
－４ ＡＣ）
）
÷２ Ａ → Ｍ：Ｍ
Ｌｂｌ １：
（－ Ｂ ＋√（Ｂ
２
－４ ＡＣ）
）÷２ Ａ → Ｍ：Ｍ ＜
70 STEP
＞
Execution Example:
i) Find solutions to the equation
.
ax
2
bx
c
+
+
0
=
x
b
–
b
2
4
ac
–
±
2
a
--------------------------------------
=
b
2
4
ac
–
0
>
b
2
4
ac
–
0
b
2
4
ac
–
0
<
ON
MODE
MODE
MODE
1
PRGM
MODE
2
CMPLX
1
P1
2
x
2
4
x
–
16
–
0
=
x
2 4
,
–
=
(
)
Prog
1
CMPLX
S A
D R
P1
P1 P2 P3 P4
G
2
EXE
CMPLX
S A
D R
P1
P1 P2 P3 P4
G
4
EXE
CMPLX
S A
D R
P1
P1 P2 P3 P4
G
1
6
EXE
M
CMPLX
Disp
S A
D R
P1
P1 P2 P3 P4
G
EXE
M
CMPLX
<>
S A
D R
P1
P1 P2 P3 P4
G
関数電卓事例集
.book 7
ページ
２００２年９月２日 月曜日 午後６時５１分
Summary of Contents for 3950P
Page 1: ......
Page 46: ...MEMO MEMO MEMO MEMO...
Page 47: ...Authors Dr Yuichi Takeda Research and Development Initiative Chuo University...
Page 48: ......
