HP Prime Graphing NW280AAABA manual Type, X0, Y0...X9,Y9, U0...U9

Type	Determines the type of hypothesis test or confidence
Inference	interval. Depends upon the value of the variable Method.
	From Symbolic View, make a selection for Type.
	Or, in a program, store the constant number from the list
	below into the variable Type. With Method=0, the
	constant values and their meanings are as follows:
	0	Z-Test:1 μ
	1	Z-Test: μ1 – μ2
	2	Z-Test:1 π
	3	Z-Test: π1 – π2
	4	T-Test:1 μ
	5	T-Test: μ1 – μ2
	With Method=1, the constants and their meanings are:
	0	Z-Int:1 μ
	1	Z-Int: μ1 – μ2
	2	Z-Int:1 π
	3	Z-Int: π1 – π2
	4	T-Int:1 μ
	5	T-Int: μ1 – μ2
X0, Y0...X9,Y9	Contains two expressions in T: X(T) and Y(T). In
Parametric	Symbolic view, select any of X0–Y0through X9–Y9and
	enter expressions in T.
	In a program, store expressions in T in Xn and Yn, where
	n is an integer from 0 to 9.
	Example:
	SIN(4*T) Y1;2*SIN(6*T) X1
U0...U9	Contains an expression in N. In Symbolic view, select any
Sequence	of U0 through U9 and enter an expression in N, Un(N-1),
	or Un(N-2).

In a program, use the RECURSE command to store the expression in Un, where n is an integer from 0 to 9.

Example:

RECURSE (U,U(N-1)*N,1,2)  U1

Programming in HP PPL 565