HP 48gII Graphing, 50g Graphing manual Root, Rot, Row, 3207

ROOT

Type: Command

Description: RootFinder Command: Returns a real number xroot that is a value of the specified variable global for which the specified program or algebraic object most nearly evaluates to zero or a local extremum.

ROOT is the programmable form of the HP Solve application.

guess is an initial estimate of the solution. ROOT produces an error if it cannot find a solution, returning the message Bad Guess(es) if one or more of the guesses lie outside the domain of the equation, or returns the message Constant? if the equation returns the same value at every sample point. ROOT does not return interpretive messages when a root is found.

Access:	…µROOT
Input/Output:
		Level 3/Argument 1	Level 2/Argument 2	Level 1/Argument 3		Level 1/Item 1
		«program»	'global'	guess	→	xroot
		«program»	'global'	{ guesses }	→	xroot
		'symb'	'global'	guess	→	xroot
		'symb'	'global'	{ guesses }	→	xroot
ROT	RPL Command
Type:
Description:	Rotate Objects Command: Rotates the first three objects on the stack, moving the object on level
	3 to level 1.

In RPN mode, ROT is equivalent to 3 ROLL.

Access:	!°STACK ROT				( °is the leftshift of the Nkey).
Input/Output:
		L3		L2		L1		L3		L2	L1
		obj3		obj2		obj1	→	obj2		obj1	obj3
					L = Level
See also:	OVER, PICK, ROLL, ROLLD, SWAP, UNROT
ROW–	Command
Type:
Description:	Delete Row Command: Deletes row n of a matrix (or element n of a vector), and returns the
	modified matrix (or vector) and the deleted row (or element).
	nrow or nelement is rounded to the nearest integer.
Access:	!Ø CRREATE ROW ROW–					( Ø is the leftshift of the				5key).
	!´MATRIX ROW ROW–					( ´is the leftshift of the				Pkey).
Input/Output:
		Level 2/Argument 1			Level 1/Argument 2			Level 2/Item 1		Level 1/Item 2
		[[ matrix ]]1			nrow		→	[[ matrix ]]2		[ vector ]row
		[ vector ]	1		n	element	→	[ vector ]	2	element
											n
See also:	COL–, COL+, ROW+, RSWP
						Full Command and Function Reference					3207