YRNG

Type: Command

Description: y-Axis Display Range Command: Specifies the y-axis display range.

The y-axis display range is stored in the reserved variable PPAR as ymin and ymax in the complex

numbers (xmin, ymin) and (xmax, ymax). These complex numbers are the first two elements of PPAR and specify the coordinates of the lower left and upper right corners of the display ranges.

The default values of ymin and ymax are –3.1 and 3.2, respectively for the HP 48gII and -3.9 and 4.0, respectively for the HP 50g and 49g+.

Access:

…µYRNG

 

 

Input/Output:

 

 

 

 

 

 

 

 

 

 

 

Level 2/Argument 1

Level 1/Argument 2

Level 1/Item 1

 

 

 

 

 

 

 

ymin

ymax

→

 

 

 

 

See also:

AUTO, PDIM, PMAX, PMIN, XRNG

 

 

 

 

 

 

YSLICE

Command

 

 

Type:

 

 

Description:

Y-Slice Plot Command: Sets the plot type to YSLICE.

 

 

When plot type is set YSLICE, the DRAW command plots a slicing view of a scalar function of

 

two variables. YSLICE requires values in the reserved variables EQ, VPAR, and PPAR.

VPAR has the following form:

{xleft, xright, ynear, yfar, zlow, zhigh, xmin, xmax, ymin, ymax, xeye, yeye, zeye, xstep, ystep }

For plot type YSLICE, the elements of VPAR are used as follows:

•xleft and xright are real numbers that specify the width of the view space.

•ynear and yfar are real numbers that specify the depth of the view space.

•zlow and zhigh are real numbers that specify the height of the view space.

•xmin and xmax are not used.

•ymin and ymax are not used.

•xeye, yeye, and zeye are real numbers that specify the point in space from which the graph is viewed.

•xstep determines the interval between plotted x-values within each “slice”.

•ystep determines the number of slices to draw.

The plotting parameters are specified in the reserved variable PPAR, which has this form:

 

 

{ (xmin, ymin), (xmax, ymax), indep, res, axes, ptype, depend }

 

For plot type YSLICE, the elements of PPAR are used as follows:

 

•

(xmin, ymin) is not used.

 

•

(xmax, ymax) is not used.

 

•

indep is a name specifying the independent variable. The default value of indep is X.

 

•

res is a real number specifying the interval, in user-unit coordinates, between plotted values of

 

 

the independent variable; or a binary integer specifying the interval in pixels. The default value is

 

 

0, which specifies an interval of 1 pixel.

 

•

axes is not used.

 

•

ptype is a command name specifying the plot type. Executing the command YSLICE places

 

 

YSLICE in ptype.

 

•

depend is a name specifying the dependent variable. The default value is Y.

Access:

…µYSLICE

Input/Output:

None

See also:

BAR, CONIC, DIFFEQ, FUNCTION, GRIDMAP, HISTOGRAM, PARAMETRIC,

 

PARSURFACE, PCONTOUR, POLAR, SCATTER, SLOPEFIELD, TRUTH, WIREFRAME

Full Command and Function Reference 3-283