Texas Instruments TI-86 - Manual (Page 39)

Chapter 1: Operating the TI -86 27
01OPER.DOC TI-86, Chap 1, US English Bob Fedorisko Revised: 02/13/01 2:18 PM Printed: 02/13/01 2:59 PM Page 27 of 22 01OPER.DOC TI-86, Chap 1, US English Bob Fedorisko Revised: 02/13/01 2:18 PM Printed: 02/13/01 2:59 PM Page 27 of 22
When you interrupt a graph, a partial graph and the GRAPH menu are displayed.
♦
To return to the home screen, press : : or any non-graphing key.
♦
To restart graphing, select an instruction that displays the graph.
Diagnosing an Error
When the TI -86 detects an error, it returns an error
message, such as ERROR 04 DOMAIN or ERROR 07 SYNTAX .
The Appendix describes each error type and possible
reasons for the error.
♦
If you select QUIT (or press - l or :
:), the home screen is displayed.
♦
If you select GOTO , the previous screen is displayed with the cursor on or near the error.
Correcting an Error
ᕡ Note the error type ( ERROR ## errorType ).
ᕢ Select GOTO , if available. The previous screen is displayed with the cursor on or near the error.
ᕣ Determine the cause for the error. If you cannot, refer to the Appendix for possible causes.
ᕤ Correct the error and continue.
Chapter 5: Function Graphing
introduces graphing.
If a syntax error occurs within
a stored equation during
program execution, select
GOTO
to return to the
equation editor, not to the
program (Chapter 5).