HP 48GII

Full Command and Function Reference 3-117
n-Value
Meaning
0 no parity (the default value)
1 odd parity
2 even parity
3 mark
4 space
Access: …µPARITY
Input/Output:
Level 1/Argument 1 Level 1/Item 1
n
parity
→
See also: BAUD, CKSM, TRANSIO
PARSURFACE
Type: Command
Description: PARSURFACE Plot Type Command: Sets plot type to PARSURFACE.
When plot type is set to PARSURFACE, the DRAW command plots an image graph of a 3-
vector-valued function of two variables. PARSURFACE requires values in the reserved variables
EQ, VPAR, and PPAR.
VPAR is made up of the following elements:
{ x
left
, x
right
, y
near
, y
far
, z
low
, z
high
, x
min
, x
max
, y
min
, y
max
, x
eye
, y
eye
, z
eye
, x
step
, y
step
}
For plot type PARSURFACE, the elements of VPAR are used as follows:
• x
left
and x
right
are real numbers that specify the width of the view space.
• y
near
and y
far
are real numbers that specify the depth of the view space.
• z
low
and z
high
are real numbers that specify the height of the view space.
• x
min
and x
max
are real numbers that specify the input region's width. The default value is (–
1,1).
• y
min
and y
max
are real numbers that specify the input region's depth. The default value is (–1,1).
• x
eye
, y
eye
, and z
eye
are real numbers that specify the point in space from which the graph is
viewed.
• x
step
and y
step
are real numbers that set the number of x-coordinates versus the number of y-
coordinates plotted.
The plotting parameters are specified in the reserved variable PPAR, which has this form:
{ (x
min
, y
min
), (x
max
, y
max
), indep, res, axes, ptype, depend }
For plot type PARSURFACE, the elements of PPAR are used as follows:
• (x
min
, y
min
) is not used.
• (x
max
, y
max
) is not used.
• indep is a name specifying the independent variable. The default value of indep is X.
• res is not used.
• axes is not used.
• ptype is a command name specifying the plot type. Executing the command PARSURFACE
places the name PARSURFACE in ptype.
• depend is a name specifying the dependent variable. The default value is Y.
Access: …µ
PARSURFACE
Input/Output: None