User Manual

Ck-148
Sxx
2
= Σx
3
–
n
(Σx
.
Σx
2
)
Sx
2
x
2
= Σx
4
–
n
(Σx
2
)
2
Sx
2
y = Σx
2
y –
n
(Σx
2
.
Σy
)
m1 =
2C
– B +
B
2
– 4C
(
A – y
)
m2 =
2C
– B –
B
2
– 4C
(
A – y
)
n = A + Bx + Cx
2
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1
A
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2
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3
C
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4
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1
x
1
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2
x
2
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