HP 35s Scientific manual Õõ, ≠, Õ≤, Operation Index G-15

Name	Keys and Description					Page
ˆ	(	ˆ	)			12–11	1
x
	Given a y–value in the X–register,
	returns the x–estimatebased on the
	regression line: xˆ = (y – b) ⎟ m.
!	*Factorial (or gamma).					4–15	1
	Returns (x)(x – 1) ... (2)(1), or Γ (x +
	1).
XROOT	The argument1 root of					6–16	1
	argument2.
x w	ÕÕ(				w )Returns	12–4	1
				
	weighted mean of x values: (Σyixi) ⎟
	Σyi.
	Displays the mean (arithmetic					12–4
	average) menu.
x<> variable	x exchange.					3–8
	Exchanges x with a variable.
x<>y	x exchange y.					2–4
	Moves x to the Y–register and y to
	the X–register.
	Displays the "x?y" comparison tests					14–7
	menu.
x≠y	(≠)					14–7
	If x≠y, executes next program line;
	if x=y, skips next program line.
x≤y?	Õ(≤)					14–7
	If x≤y, executes next program line;
	if x>y, skips next program line.
x<y?	ÕÕ(<)					14–7
	If x<y, executes next program line;
	if x≥y, skips next program line.
x>y?	ÕÕÕ(>)					14–7
	If x>y, executes next program line;
	if x≤y, skips next program line.
x≥y?	ÕÕÕÕ(≥)					14–7
	If x≥y, executes next program line;
	if x<y, skips next program line.

Operation Index G-15