Calculator User Manual

102
Chapter 6: Graph Tools
06TOOLS.DOC TI-86, Chap 6, US English Bob Fedorisko Revised: 02/13/01 2:23 PM Printed: 02/13/01 3:01 PM Page 102 of 2206TOOLS.DOC TI-86, Chap 6, US English Bob Fedorisko Revised: 02/13/01 2:23 PM Printed: 02/13/01 3:01 PM Page 102 of 22
Before Drawing on a Graph
All drawings are temporary; they are not stored in a graph database. Any action that causes
Smart Graph to replot the graph erases all drawings. Therefore, before you use any drawing
tool, consider whether you want to perform any of these graphing activities first.
♦
Change a mode setting that affects graphs
♦
Select, deselect, or edit a current function or stat plot
♦
Change the value of a variable used in a selected function
♦
Change a window variable value
♦
Change a graph format setting or graph style
♦
Clear current drawings with
CLDRW
Saving and Recalling Drawn Pictures
To store the elements that define the current graph to a graph database (
GDB
) variable,
select
STGDB
from the
GRAPH
menu. These information types are stored to a
GDB
variable:
♦
Equation editor functions
♦
Window variable values
♦
Graph style settings
♦
Format settings
To recall the stored
GDB
later, select
RCGDB
from the
GRAPH
menu, and then select the
GDB
variable from the
GRAPH RCGDB
menu. When you recall a
GDB
, the information stored
in the
GDB
replaces any current information of these types.
To store the current graph display, including drawings, to a picture (
PIC
) variable, select
STPIC
from the
GRAPH
menu. Only the graph picture is stored to the specified
PIC
variable.
To superimpose one or more stored graph pictures onto a graph later, select
RCPIC
from the
GRAPH
menu, and then select the
PIC
variable from the
GRAPH RCPIC
menu.
Graph database (GDB) and
picture (PIC) variable names
can be from one to eight
characters long. The first
character must be a letter.
The next section describes
how to draw lines, points,
curves, and text onto a
graph; you then can store the
drawings to a
PIC
variable.