Citizen SR-270X College Manual Page 19
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E – 18
File name : SR100DCollege_English_text_0531_final.doc
version : 10/05/31
For Quadratic Regression (_+CX
2
) only :
C [7: Reg] [ 3 ] Quadratic coefficient C of the regression
coefficients
1
ˆ
x
[7: Reg] [ 4 ] Estimated value of x1
2
ˆ
x
[7: Reg] [ 5 ] Estimated value of x2
y
ˆ
[7: Reg] [ 6 ] Estimated value of y
You also can add a new data anytime. The unit automatically
recalculates statistics each time you press [ = ] and enter a new data
value.
To view or change data
1. Press [ 2nd ] [ STATVAR ] [ 2 ] to enter Editor Screen.
2. Press [
T
] or [
S
] to scroll through the data you have entered.
3. To
change
an entry, display it and enter the new data. The new
data you enter overwrites the old entry. Press [ = ] to save the
change.
4. To
delete
an entry, position the cursor on the line you want to
delete, press [ DEL ].
5. To
insert
an entry, position the cursor on the line above where
you want to insert, press [ 2nd ] [ STATVAR ] [ 3 ] and then
select [ 1 ] (Ins) to create a new blank entry, fill the new data in
the blank and press [ = ].
6. To
delete all
entries, press [ 2nd ] [ STATVAR ] [ 3 ] and then
select [ 2 ] (Del-A) to clear all data on the Editor Screen.
(Note) : Statistical data and results are retained when the
calculator is turned off, but are cleared when you change
calculation types, FREQ setting or clear data by
selecting Del-A command from STATVAR menu.
Equation Calculations
Use EQN ( [ MODE ] 3 ( EQN ) ) mode for simultaneous linear
equations calculation.
An equation type menu appears when you press [ MODE ] [3](EQN)
and enter the EQN mode. (See Example 50~51)
EQN Menu Meaning Equation
1: anX+bnY=cn Simultaneous
linear equations
with two unknowns
⎩
⎨
⎧
=+
=+
222
111
cYbXa
cYbXa
2: anX+bnY+cnZ=dn Simultaneous
linear equations
with three
unknowns
⎪
⎩
⎪
⎨
⎧
=++
=++
=++
3333
2222
1111
dZcYbXa
dZcYbXa
dZcYbXa
To solve simultaneous linear equations
- SIZE:140x75mm 1
- General Guide 4
- Before Starting Calculation 5
- Using Math Mode 7
- Replay function 7
- Memory calculation 8
- Order of operations 9
- Accuracy and Capacity 9
- Basic Calculations 11
- Parentheses calculations 12
- Percentage calculation 12
- Display notations 12
- Answer Function 13
- Fraction calculation 13
- Coordinates transformation 15
- Probability 15
- Statistical Calculations 16
- Equation Calculations 19
- Function Table 20
- Using Verify 20
- Proportionality Calculations 21
- Example 22
- Example 1 22
- Example 2 22
- Example 3 22
- Example 4 22
- Example 5 23
- Example 6 23
- Example 7 24
- Example 8 24
- Example 9 24
- Example 10 24
- Example 11 25
- Example 12 25
- Example 13 25
- Example 14 25
- Example 15 26
- Example 16 26
- Example 17 26
- Example 18 26
- Example 19 27
- Example 20 27
- Example 21 27
- Example 22 28
- Example 23 28
- Example 24 28
- Example 25 29
- Example 26 29
- Example 27 29
- Example 28 29
- Example 29 29
- Example 30 30
- Example 31 30
- Example 32 30
- Example 33 30
- Example 34 30
- Example 35 31
- Example 36 31
- Example 37 31
- Example 38 31
- Example 39 32
- Example 40 32
- Example 41 32
- Example 42 32
- Example 43 32
- Example 44 33
- Example 45 33
- Example 46 33
- Example 47 33
- Example 48 33
- Example 49 34
- Example 50 35
- Example 51 36
- Example 52 37
- Example 53 37
- Example 54 38
- EX – 18 39
- EX – 19 40
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