Hp 48g Graphing Calculator Bedienungsanleitung PDF herunterladen (Seite 296)

100

101

Understanding the PLOT Reserved Variables

The PLOT application makes it easy to declare the plot and display

ranges, the scale and resolution of the plots, and various other

characteristics of the plot.

All of the information about a plot is automatically stored in a small

set of reserved variables that 3'ou have direct access to if you wish.

Because they are variables, stored in directories, you can have a

different version of these reserved variables in every directory.

EQ contains the current equation or the name of the variable

containing the current equation.

Specifically, the “equation” that EQ contains can be any of the

following for the PLOT application:

■ A single algebraic object or a name containing a single algebraic.

■ A real number (or a complex number for the Parametric plot type)

or a name containing a real number.

B A program that takes nothing from the stack and yields exactly one

real (or complex for the Parametric plot type) result or a name

containing such a program.

■ A list containing any combination of the preceding three possibilities

or the name of such a list. Although all elements are plotted, the

first element of the list is always considered to be the “current”

equation.

SDAT

EDAT contains the current statistical matrix or the name of the

current statistical matrix. It is used instead of EQ by the three

statistical plot types—Scatter, Bar, and Histogram.

22-12 Plotting

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