HP 39g+ - Manual (Page 244)

15-38 Programming
X1, Y1...X9,Y9
X0,Y0
3DUDPHWULF
Can contain any expression. Independent variable is T.
Example
’SIN(4*T)’
&
Y1(T):’2*SIN(6*T)’ STO
&
X1(T)
R1...R9, R0
3RODU
Can contain any expression. Independent variable is
θ
.
Example
’2*SIN(2*
θ
)’
&
R1(
θ
)
U1...U9, U0
6HTXHQFH
Can contain any expression. Independent variable is N.
Example
RECURSE (U,U(N-1)*N,1,2)
&
U1(N)
E1...E9, E0
6ROYH
Can contain any equation or expression. Independent variable
is selected by highlighting it in Numeric View.
Example
’X+Y*X-2=Y’
&
E1
S1fit...S5fit
6WDWLVWLFV
Defines the type of fit to be used by the FIT operation in
drawing the regression line.
From Symbolic Setup view, specify the fit in the field for
S1FIT, S2FIT, etc.
or
In a program, store one of the following constant names or
numbers into a variable
S1fit , S2fit , etc.
1. Linear
2. LogFit
3. ExpFit
4. Power
5. QuadFit
6. Cubic
7. Logist
8. User defined
Example
Cubic
&
S2fit
or
6
&
S2fit