# Prlcd; Prompt; Promptsto; Proot - HP 48gII Advanced User's Reference Manual

Graphing calculator.

## PRLCD

Type:
Command
Description: Print LCD Command: Prints a pixel-by-pixel image of the current display (excluding the
annunciators).
The width of the printed image of characters in the display is narrower using PRLCD than using
a print command such as PR1. The difference results from the spacing between characters. On
the display there is a single blank column between characters, and PRLCD prints this spacing.
Print commands such as PR1 print two blank columns between adjacent characters.
...µ
Access:
Flags:
I/O Device (-33), Printing Device (-34), Double-spaced Printing (-37), Linefeed (-38). Flag -38
must be clear. If flag -34 is set, flag -33 must be clear.
Input/Output: None
CR, DELAY, OLDPRT, PRST, PRSTC, PRVAR, PR1

### PROMPT

Type:
Command
Description: Prompt Command: Displays the contents of "prompt" in the status area, and halts program
execution.
!°L
Access:
Input/Output:
CONT, DISP, FREEZE, HALT, INFORM, INPUT, MSGBOX

### PROMPTSTO

Type:
Command
Description: Prompt Command: Creates a variable with the name supplied as an argument, prompts for a
value, and stores the value you enter in the variable.
...µ
Access:
Input/Output:
PROMPT, STO

### PROOT

Type:
Command
Description: Polynomial Roots Command: Returns all roots of an n-degree polynomial having real or complex
coefficients.
For an n
-order polynomial, the argument must be a real or complex array of length n + 1
th
containing the coefficients listed from highest order to lowest. The result is a real or complex
vector of length n containing the computed roots.
PROOT interprets leading coefficients of zero in a limiting sense. As a leading coefficient
approaches zero, a root of the polynomial approaches infinity: therefore, if flag –22 is clear (the
default), PROOT reports an Infinite Result error if a leading coefficient is zero. If flag –22 is set,
PROOT returns a root of (MAXREAL,0) for each leading zero in an array containing real
coefficients, and a root of (MAXREAL,MAXREAL) for each leading zero in an array containing
complex coefficients.
Access:
3-128 Full Command and Function Reference
PRLCD
L
IN
PROMPT
Level 1/Argument 1
"prompt"
PROMPTSTO
Level 1/Argument 1
"global"
LL
POLYNOMIAL
PROOT
( °is the left-shift of the Nkey).
(Þis the left-shift of the 1key).
Level 1/Item 1
Level 1/Item 1