HP 40gs - Manual (Page 387)

Programming 21-39
X1, Y1...X9,Y9
X0,Y0
Parametric
Can contain any expression. Independent variable is T.
Example
'SIN(4*T)' X Y1(T):'2*SIN(6*T)' X
X1(T)
R1...R9, R0
Polar
Can contain any expression. Independent variable is θ.
Example
'2*SIN(2*θ)' X R1(θ)
U1...U9, U0
Sequence
Can contain any expression. Independent variable is N.
Example
RECURSE (U,U(N-1)*N,1,2) X U1(N)
E1...E9, E0
Solve
Can contain any equation or expression. Independent
variable is selected by highlighting it in Numeric View.
Example
'X+Y*X-2=Y' X E1
S1fit...S5fit
Statistics
Sets 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 numbers
or names into a variable
S1fit, S2fit, etc.
1 Linear
2 LogFit
3 ExpFit
4 Power
5 QuadFit
6 Cubic
7 Logist
8 ExptFit
9 TrigFit
10 User
hp40g+.book Page 39 Friday, December 9, 2005 1:03 AM