Texas Instruments TI-86 - Manual (Page 114)

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 22 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 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.