Casio FX-991ES Appendix - Page 24
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Sx 2y = Σx2y - (Σx2.Σy) n m1 = - B + B2 - 4C(A - y) 2C m2 = - B - B2 - 4C(A - y) 2C n = A + Bx + Cx2 #066 11(STAT)1(Type) STAT 3(_+CX2) STAT A #067 11(STAT)7(Reg) STAT 1(A)= STAT 11(STAT)7(Reg) 2(B)= -23-
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–23–
#066
1
1
(STAT)
1
(Type)
3
(_+CX
2
)
STAT
A
STAT
#067
1
1
(STAT)
7
(Reg)
1
(A)
=
STAT
1
1
(STAT)
7
(Reg)
STAT
2
(B)
=
Sx
2
y
=
Σ
x
2
y
–
n
(
Σ
x
2
.
Σ
y
)
m
1
=
2
C
–
B
+
B
2
–
4
C
(
A
–
y
)
m
2
=
2
C
–
B
–
B
2
–
4
C
(
A
–
y
)
n
=
A
+
Bx
+
Cx
2