Texas TI-86 Manuale Utente

 

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 19 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 19 of 22

When an entry is executed on the home screen, the
answer is displayed on the right side of the next line.
When you execute an instruction, 

 is typically

displayed on the right side of the next line.

If an answer is too long to display on the screen, an
ellipsis (...) is displayed, initially to the right. To view
more of the answer, press ". When you do, an ellipsis
is displayed to the left. To scroll back, press !.

Entry
Answer

Entry
Answer

A symbol or abbreviation of each key’s primary function is printed in white on the key. For
example, when you press \, a plus sign is pasted to the cursor location. This guidebook
describes number-entry keystrokes as 

, 

, 

, and so on, instead of Y Z [.

To enter a negative number, press a (the negate key), and then press the appropriate
number keys. For example, to enter 

, press a 

. Do not attempt to express a negative

number using T (the subtract key). a and T are two different keys with different uses.

The order in which the TI

-86 evaluates negation and other functions within an expression is

governed by the Equation Operating System

è (Appendix). For example, the result of 

 is

, while the result of 

 is 

. If you are unsure about the order of evaluation, use D and

E to clarify the intended use of the negation symbol.

The mode settings control the
way the TI

-

86 interprets

expressions and displays
answers (page 34).

The TI

-

86 on-screen division

symbol is a forward slash

( 

 )

, as in a fraction.

Always use parentheses to
clarify negation when you use
conversion instructions
(Chapter 4).