Calculator fx-85W fx-85WA fx-300W fx-350TL User Guide

E-20
Data Input Precautions
• S S inputs the same data twice.
•You can also input multiple entries of the same data us-
ing
A G. To input the data 110 ten times, for example,
press 110
A G 10 S.
• The above results can be obtained in any order, and not
necessarily that shown above.
•To delete data you have just input, press
A U.
k Regression Calculations (REG Mode)
•Press F F 2 (fx-85W) to enter the REG mode and
then select one of the following regression types. For
other models, press
F 3.
1:Linear regression
2: Logarithmic regression
3:Exponential regression
r 1:Power regression
r 2:Inverse regression
r 3:Quadratic regression
•Data input always starts with
A m = to clear statisti-
cal memory.
• The values produced by a regression calculation depend
on the values input, and results can be recalled using
the key operations shown in the table below.
A N
xσ
n-1
A l
p
A d
yσ
n
A c
yσ
n-1
A q Regression coefficient A
A w Regression coefficient B
A e Regression coefficient C
A u Correlation coefficient r
A O m
A b n
0 G Σx
2
0 H Σx
0 k n
0 h Σy
2
0 n Σy
0 o Σxy
0 M Σx
3
0 x Σx
2
y
0 y Σx
4
A M o
A A
xσ
n