10
06
Summing Arithmetic Progressions
１．
The sum up to the th term of an arithmetic progression with first term and
difference term , may be calculated by:
Program
？→ Ａ：？→ Ｂ：？→ Ｃ：Ｃ（２ Ａ ＋（Ｃ －１）Ｂ）÷２→ Ｄ：Ｄ ＜
30 STEP
＞
OUTPUT
Ｄ
: sum of arithmetical progression
Execution Example:
Calculate the sum up to the 10th term of the arithmetic progression with first term 1 and
difference term 3.
１＋４＋７＋・・・＋２８＝１４５
C
A
B
A
k
1
–
(
)
B
+
(
)
k
1
=
C
∑
A
A
B
+
(
)
A
2
B
+
(
) …
A
C
1
–
(
)
B
+
(
)
+
+
+
+
=
C
2
----
2
A
C
1
–
(
)
B
+
(
)
=
ON
MODE
MODE
MODE
1
PRGM
MODE
1
COMP
1
P1
Prog
1
S A
D R
P1
P1 P2 P3 P4
G
1
EXE
S A
D R
P1
P1 P2 P3 P4
G
3
EXE
S A
D R
P1
P1 P2 P3 P4
G
1
0
EXE
S A
D R
P1
P1 P2 P3 P4
G
関数電卓事例集
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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: ......
