HP 49g Pocket Guide

56
PURGE
* = function
PURGE Purges the named variables or empty subdirectories from
the current directory.
<N MEMORY
‘ global ’
→
PUT Replaces the object at a specified position in an array. <N LIST
ELEMENTS
[[ matrix ]]
1
n
position
z
put
→ [[ matrix ]]
2
PUTI As for PUT (see above) but also increments the position. <N LIST
ELEMENTS
[[ matrix ]]
1
n
position1
z
put
→ [[ matrix ]]
2
n
position2
PVAR Calculates the population variance of the coordinate
values in each of the m columns in Σ DAT .
N → x
pvariance
PVARS Returns a list of the backup objects and library objects in a
specified port, and the available memory.
N
n
port
→ { :n
port
: name
backup
… } memory
PVIEW Displays PICT with the specified coordinates at the upper
left corner of the graphics display.
<N PICT
( x,y )
→
PWRFIT Stores PWRFIT in Σ PAR , so that subsequent executions
of LR use the power curve fitting model.
N
PX→C Converts the specified pixel coordinates to user-unit
coordinates.
<N PICT
{ #
n
, #
s
}
→ ( x,y )
→Q Returns a rational form of the argument. N
x
→ ‘ a / b ’
QR Returns the QR factorization of an m × n matrix. < %
FACTORIZATION
[[ matrix ]]
A
→ [[ matrix ]]
Q
[[ matrix ]]
R
[[ matrix ]]
P
QUAD Finds zeros of an expression equated to 0, or solves an
equation. Same as SOLVE.
N
‘ symb
1
’ ‘ global ’
→ ‘ symb
2
’
Name Description Access Inputs Outputs

HP 49g Specifications

General

Model	HP 49g
Type	Graphing Calculator
Display	131 x 64 pixels
Processor	Saturn
Memory	512 KB RAM, 2 MB ROM
Power Supply	3 x AAA batteries
Connectivity	RS-232
Programming	RPL