HP 33s User Manual
Page 267
Statistics
Programs
16–7
Program Lines:
(In RPN mode)
Description
!!
!¸
%
!º!
Calculates Y= B(X
M
).
!!
Returns to the calling routine.
Checksum and length: 018C 18
This subroutine calculates
xˆ
for the power model.
!. L
Restores index value to its original value.
&
ª
+º
¸
%
Calculates
xˆ
= (Y/B)
1/M
!
Returns to the calling routine.
Checksum and length: 3040 24
Flags Used:
Flag 0 is set if a natural log is required of the X input. Flag 1 is set if a natural log
is required of the Y input.
Program instructions:
1.
Key in the program routines; press
when done.
2.
Press
X
and select the type of curve you wish to fit by pressing:
S for a straight line;
L for a logarithmic curve;
E for an exponential curve; or
P for a power curve.
3.
Key
in
x
–value and press
g
.
4.
Key
in
y
–value and press
g
.