HP 50g Graphing, 48gII Graphing Ndist, Ndupn, Neg, Access …ß NEG ßis the rightshift of the 1key

NDIST

Type:	Command
Description:	Normal Distribution Command: Returns the normal probability distribution (bell curve) at x
	based on the mean m and variance v of the normal distribution.
	NDIST is calculated using this formula:
				(x – m)2
				–-------------------
		ndist(m, v, x) =		e	2v
				---------------------
				2	πv
Access:	!´LPROBABILITY LNDIST		( ´is the leftshift of the Pkey).
Input/Output:
		Level 3/Argument 1 Level 2/Argument 2		Level 1/Argument 3			Level 1/Item 1
		m	v		x	→	ndist(m, v, x)
See also:	UTPN

NDUPN

Type:	RPL command
Description:	Duplicates an object n times, and returns n.
Access:	!°STACK !«NDUPN		( °is the leftshift of the Nkey).
	ISTACK !«NDUPN
Input/Output:
		Level 2	Level 1		Leveln+1 … Level2	Level1
		obj	n	→	obj … obj	n
Example:	To make a list of 100 “X”s, run "X" 100 NDUPN →LIST.
See also:	DUP, DUPDUP, DUPN, DUP2
NEG	Analytic function
Type:
Description:	Negate Analytic Function: Changes the sign or negates an object.

Negating an array creates a new array containing the negative of each of the original elements. Negating a binary number takes its two’s complement (complements each bit and adds 1).

Negating a graphics object “inverts” it (toggles each pixel from on to off, or viceversa). If the argument is PICT, the graphics object stored in PICT is inverted.

Access: …ßNEG	( ßis the rightshift of the 1key).
!´L COMPLEX LNEG	( ´is the leftshift of the Pkey).

W

Flags: Numerical Results (–3), Binary Integer Wordsize (–5 through –10)

Input/Output:

Level 1/Argument 1		Level 1/Item 1
z	→	–z
#n1	→	#n2
[ array ]	→	[ –array ]
'symb'	→	'–(symb)'
x_unit	→	–x_unit
grob1	→	grob2
PICT1	→	PICT2

3154 Full Command and Function Reference