Reference Guide

Full Command and Function Reference 3-207
ROOT
Type: Command
Description: Root-Finder Command: Returns a real number x
root
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: …µ ROOT
Input/Output:
Level 3/Argument 1 Level 2/Argument 2 Level 1/Argument 3 Level 1/Item 1
«program» 'global' guess
→
x
root
«program» 'global' { guesses }
→
x
root
'symb' 'global' guess
→
x
root
'symb' 'global' { guesses }
→
x
root
ROT
Type: RPL Command
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 left-shift of the Nkey).
Input/Output:
L
3
L
2
L
1
L
3
L
2
L
1
obj
3
obj
2
obj
1
→
obj
2
obj
1
obj
3
L = Level
See also: OVER, PICK, ROLL, ROLLD, SWAP, UNROT
ROW–
Type: Command
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).
n
row
or n
element
is rounded to the nearest integer.
Access: !Ø CRREATE ROW ROW – ( Ø is the left-shift of the 5key).
!´ MATRIX ROW ROW – ( ´ is the left-shift of the Pkey).
Input/Output:
Level 2/Argument 1 Level 1/Argument 2 Level 2/Item 1 Level 1/Item 2
[[ matrix ]]
1
n
row
→
[[ matrix ]]
2
[ vector ]
row
[ vector ]
1
n
element
→
[ vector ]
2
element
n
See also: COL–, COL+, ROW+, RSWP