Reference Guide

3-14 Full Command and Function Reference
Access: !°L PICT ARC ( °is the left-shift of the Nkey).
Flags: Angle Mode (–17 and –18). The setting of flags –17 and –18 determine the interpretation of x
θ1
and x
θ2
(degrees, radians, or grads).
Input/Output:
Level 4/Argument 1 Level 3/Argument 2 Level 2/Argument 3 Level 1/Argument 4 Level 1/Item 1
(x, y) x
radius
x
θ
1
x
θ
2
→
{ #n,#m } #n
radius
x
θ
1
x
θ
2
→
Flags: Angle Mode (–17 and –18)
See also: BOX, LINE, TLINE
ARCHIVE
Type: Command
Description: Archive HOME Command: Creates a backup copy of the HOME directory (that is, all variables),
the user-key assignments, and the alarm catalog in the specified backup object (:n
port
:name) in RAM
or flash ROM.
The specified port number can be 0 through 3, where 3 is the SD card. (Port 3 only applies to the
HP 50g and 49g+.) An error will result if there is not enough memory in the specified port to
copy the HOME directory.
If the backup object is “:IO:name”, then the copied directory is transmitted in binary via Kermit
protocol through the current I/O port to the specified filename.
To save flag settings, execute RCLF and store the resulting list in a variable.
Access: !° MEMORY L ARCHIVE ( °is the left-shift of the Nkey).
Flags: I/O Device (–33), I/O Messages (–39), I/O Device for Wire (–78) if the argument is “:IO:name”.
Input/Output:
Level 1/Argument 1 Level 1/Item 1
:n
port
:name
→
:IO :name
→
See also: RESTORE
ARG
Type: Function
Description: Argument Function: Returns the (real) polar angle θ of a complex number (x, y).
The polar angle θ is equal to:
• atan y/x for x ≥ 0
• atan y/x + π sign y for x < 0, Radians mode
• atan y/x + 180 sign y for x < 0, Degrees mode
• atan y/x + 200 sign y for x < 0, Grads mode
A real argument x is treated as the complex argument (x,0).
Access: …Ë (Ë is the right-shift of the /key).
Flags: Angle mode (–17, –18)
Input/Output:
Level 1/Argument 1 Level 1/Item 1
(x, y)
→
θ
'symb'
→
'ARG(symb)'
See also: ATAN