Calculation formula used for each command

 y

 x

 x

2

A =          B

n

(

n

)

   C

(

n

)

S

xy.

S

x

2

x

2 

  S

x

2

y.

S

xx

2

B =

S

xx.

S

x

2

x

2 

  (S

xx

2

)

2

S

x

2

y.

S

xx

   S

xy.

S

xx

2

C = S

xx.

S

x

2

x

2 

  (S

xx

2

)

2

( x)

2

Sxx

 = 

 x

2

n

Sxy

 = 

 xy 

  (

 x. y

)

n

Sxx

2

 = 

 x

3

( x. x

2

)

n

Sx

2

x

2

 = 

 x

4

(

 x

2

)

2

n

Sx

2

y

 = 

 x

2

y 

  (

 x

2

. y

)

n

  B + B

2 

  4C

(

A 

  y

)

m

1

 =

2C

  B   B

2 

  4C

(

A 

  y

)

m

2

 =

2C

n = A + Bx + Cx

2

Reg Sub menu (17(S MENU)7(Reg))

Select this

When you want to obtain this:

menu item:

1A

Regression coefficient constant term A

Linear coefficient B of the regression

2B

coefficients

Quadratic coefficient C of the regression

3C

coefficients

4

m

1

Estimated value of 

x

1

5

m

2

Estimated value of 

x

2

6

n

Estimated value of 

y

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