Parameter

 

 

 

 

(Command)

Description

Default Value

 

 

 

 

(xmin, ymin) (XRNG,

A complex number specifying the lower left corner of

(–6.5, –3.1)

48gII

YRNG)

PICT (the lower left corner of the display range).

(–6.5, –3.9)

49g+

 

 

(–6.5, –3.9)

50g

(xmax, ymax) (XRNG,

A complex number specifying the upper right corner of

(6.5, 3.2)

48gII

YRNG)

PICT (the upper right corner of the display range).

(6.5, 4.0)

49g+

 

 

(6.5, 4.0)

50g

indep (INDEP)

A name specifying the independent variable, or a list

X

 

 

 

containing that name and two numbers that specify the

 

 

 

 

minimum and maximum values for the independent

 

 

 

 

variable (the plotting range).

 

 

 

res (RES)

Resolution. A real number specifying the interval

0

 

 

 

between values of the independent variable. For plots of

 

 

 

 

equations, this determines the plotting interval along the

 

 

 

 

x-axis. A binary number specifies the pixel resolution

 

 

 

 

(how many columns of pixels between points). An

 

 

 

 

integer specifies the resolution in user units (how many

 

 

 

 

user units between points). Resolution for statistical

 

 

 

 

plots is different (see below).

 

 

 

axes (AXES)

A complex number specifying the user-unit coordinates

(0, 0)

 

 

 

of the plot origin, or a list containing the following:

 

 

 

 

 the complex number specifying the origin

 

 

 

 

 a real number, binary integer, or list containing two

 

 

 

 

real numbers or binary integers specifying the tick-

 

 

 

 

mark annotation (see ATICK)

 

 

 

 

 two strings specifying labels for the horizontal and

 

 

 

 

vertical axes

 

 

 

ptype

A command name specifying the plot type (BAR,

FUNCTION

(BAR, etc.)

CONIC, DIFFEQ, FAST3D, FUNCTION,

 

 

 

 

GRIDMAP, HISTOGRAM, PARAMETRIC,

 

 

 

 

PARSURFACE, PCONTOUR, POLAR, SCATTER,

 

 

 

 

SLOPEFIELD, TRUTH, WIREFRAME, or YSLICE).

 

 

 

depend (DEPND)

A name specifying the dependent variable, or a list

Y

 

 

 

containing the name and two numbers that specify

 

 

 

 

vertical plotting range. For DIFFEQ, the second

 

 

 

 

element of the list may also be a real vector that

 

 

 

 

represents the initial value.

 

 

 

 

 

 

 

 

Parameters without commands can be modified with a program by storing new values in the list contained in PPAR (use the PUT command).

Reserved Variables D-7