Reference Guide
3-272 Full Command and Function Reference
However, obtaining the curl of the above result, and then applying VPOTENTIAL to it again will
give the same result.
See also: CURL, POTENTIAL
VTYPE
Type: Command
Description: Variable Type Command: Returns the type number of the object contained in the named variable.
If the named variable does not exist, VTYPE returns –1.
For a table of the objects’ type numbers, see the entry for TYPE.
Access: !°
TYPE
L
L
VTYPE
( °is the left-shift of the Nkey).
Input/Output:
Level 1/Argument 1 Level 1/Item 1
'name'
→
n
type
:n
port
: name
backup
→
n
type
:n
port
: n
library
→
n
type
See also: TYPE
*W
Type: Command
Description: Multiply Width Command: Multiplies the horizontal plot scale by x
factor
. *W is provided for
compatibility with the HP 48. *W is the same as SCALEW; see its listing for details.
WAIT
Type: Command
Description: Wait Command: Suspends program execution for specified time, or until a key is pressed.
The function of WAIT depends on the argument, as follows:
•
Argument x interrupts program execution for x seconds.
•
Argument 0 suspends program execution until a valid key is pressed (see below). WAIT then
returns x
key
, which defines where the pressed key is on the keyboard, and resumes program
execution.
x
key
is a three-digit number that identifies a key
’
s location on the keyboard. See the entry for
ASN for a description of the format of x
key
.
•
Argument –1 works as with argument 0, except that the currently specified menu is also
displayed.
!, …, ~, ~!, and ~… are not by themselves valid keys.
Arguments 0 and –1 do not affect the display, so that messages persist even though the keyboard
is ready for input (FREEZE is not required).
Normally, the MENU command does not update the menu keys until a program halts or ends.
WAIT with argument –1 enables a previous execution of MENU to display that menu while the
program is suspended for a key press.
Access: !°
L
IN WAIT
( °is the left-shift of the Nkey).