HP 40gs hp 40gs_user's guide_English_E_HDPMSG40E07A.pdf - Page 387

hp40g+.book Page 39 Friday, December 9, 2005 1:03 AM X1, Y1...X9,Y9 X0,Y0 Parametric R1...R9, R0 Polar U1...U9, U0 Sequence E1...E9, E0 Solve S1fit...S5fit Statistics Programming Can contain any expression. Independent variable is T. Example 'SIN(4*T)' X Y1(T):'2*SIN(6*T)' X X1(T) Can contain any expression. Independent variable is θ. Example '2*SIN(2*θ)' X R1(θ) Can contain any expression. Independent variable is N. Example RECURSE (U,U(N-1)*N,1,2) X U1(N) Can contain any equation or expression. Independent variable is selected by highlighting it in Numeric View. Example 'X+Y*X-2=Y' X E1 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 21-39