Texas Instruments TI-86 - Manual (Page 115)

Chapter 6: Graph Tools
103
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 103 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 103 of 22
Clearing Drawn Pictures
To clear drawn pictures while the graph is displayed, select CLDRW from the GRAPH DRAW
menu. The graph is replotted and displayed with no drawn elements.
To clear drawn pictures from the home screen, select ClDrw from the CATALOG . ClDrw is
pasted to the cursor location. Press b. Done is displayed; when you display the graph
again, no drawings are displayed.
The GRAPH DRAW Menu 6 / '
MATH DRAW FORMT STGDB RCGDB
Shade LINE VERT HORIZ CIRCL 4 DrawF PEN PTON PTOFF PTCHG
4 CLDRW PxOn PxOff PxChg PxTest
4 TEXT TanLn DrInv
You can use these GRAPH DRAW menu items only on the home screen or in the program editor.
Shade( Shades a specified area of a graph (See page 104)
DrawF expression Draws expression as a function
PxOn( row , column ) Turns on the pixel at ( row , column )
PxOff( row , column ) Turns off the pixel at ( row , column )
PxChg( row , column ) Changes the on àoff status of the pixel at ( row , column )
PxTest( row , column ) Returns 1 if the pixel at ( row , column ) is on, or 0 if the pixel is off
TanLn( expression , x ) Draws expression as a function and a tangent line of expression at x
DrInv expression Draws the inverse of expression
DrInv is not available in Pol,
Param , or DifEq graphing
modes.
For PxOn, PxOff, PxChg, and
PxTest
, row and column are
integers, where 0 row 62
and 0 column 126.
For DrawF, TanLn, and
DrInv
, expression is in terms
of x. Also, you cannot include
a list in
expression to draw a
family of curves.