Center Of Mass Of A Triangle(Barycentre) - Casio fx-3650P Programming Manual

19 Center of mass of a triangle
The three medians of a triangle all meet at a single
point. This point is called the "center of mass" (or
barycentre).
The center of mass divides each line in half.
For a triangle with corner points
the center of mass is given:
OA + OB
OP = -------------------------------------- -
ON MODE
？→ Ｘ：？→ Ｙ：Ｘ → Ａ：Ｙ → Ｂ：？→ Ｘ：？→ Ｙ：Ｘ → Ｃ：Ｙ → Ｄ：？→ Ｘ：？→ Ｙ：
（Ａ ＋ Ｃ ＋ Ｘ）÷３→ Ｘ： （Ｂ ＋ Ｄ ＋ Ｙ）÷３→ Ｙ：Ｘ
INPUT X, Y (first time):
OUTPUT X, Y: center of mass
The center of mass for a triangle with corners A(1,0),B(0,3) and C(－1,0) is P(0,1).
Prog 1
EXE
1 0
0 EXE 3
1 EXE
EXE
28
A B
,
+ OC
3
MODE MODE
A X, Y
( ) X, Y(second time) :
P(X, Y)
EXE
EXE
0 EXE
C
and ,
PRGM
COMP
1 MODE
B
S A
S A
S A
S A
(barycentre)
A
P
B
O
1 1
Ｙ ＜ 67 STEP ＞
X, Y
( ) X, Y(third time) : C(
P1 P1 P2 P3 P4 D R
P1 P1 P2 P3 P4 D R
P1 P1 P2 P3 P4 D R
P1 P1 P2 P3 P4 D R
C
X, Y
)
G
G
G
Disp
G