User Manual


三次回归
 
y 
=
ax

bx

cx d
 a 

b 

c 

d y 

四次回归
 
y 
=
ax

bx

cx

dx e
 a 

b 

c 

d 

e y 
k 对数回归图形
y x 󰆺y 
=
a b x 
=
x 
󰀬󰁠y 
=
a b 

  16g2
  6



y 
=
a b x
 a 

b  
k 指数回归图形
󰅘y x 󰅘󰆺󰅘y 
=
a e
bx
󰀚
󰃖
y 
=
a bx 
=
y 
=
a 󰀬󰁠

=

bx 

  16g3
  1
aeˆbx 2abˆx 
  6

󰅘

y 
=
a e
bx
 a 

b  

 y 
=
a b
x
 a 

b  
二次回归
 
y 
=
ax

bx c
 a 

b 

c y 
