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Resetting all memory and defaults, Calculating on the home screen, Calculating the sine of a number – Texas Instruments TI-86 User Manual

Page 15: Storing the last answer to a variable

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Quick Start

3

00QWIKST.DOC TI-86, Quick Start, US English Bob Fedorisko Revised: 02/13/01 1:51 PM Printed: 02/13/01 2:59 PM Page 3 of 14

00QWIKST.DOC TI-86, Quick Start, US English Bob Fedorisko Revised: 02/13/01 1:51 PM Printed: 02/13/01 2:59 PM Page 3 of 14

Resetting All Memory and Defaults

To reset all memory and defaults, press - ™ ( & ). The messages

Mem cleared

and

Defaults set

are displayed on the home screen, confirming that all memory and defaults are

reset. You may need to adjust the contrast after memory and default reset.

Calculating on the Home Screen

To replicate the screens shown in the Quick Start activities, reset all memory and defaults
once before you begin. Before doing an activity, press : to clear the screen (except
before the entry retrieval and integer-part examples). Otherwise, the screens your TI

-86

shows may differ from the screens pictured next to the activities.

Calculating the Sine of a Number

ᕡ Enter the sine function.

(:) =

ᕢ Enter a value. You can enter an expression,

which is evaluated when you press b.

D - ~ F

4

E

ᕣ Evaluate the problem. The evaluation of the

expression sine(

pà4) is displayed.

b

Storing the Last Answer to a Variable

ᕡ Paste the store symbol ( ) to the screen.

Since a value must precede , but you did
not enter a value, the TI

-86 automatically

pasted

Ans

before . (continued)

(:)
X

To express

-

and

1

keystroke combinations, this
guidebook places brackets
(

ã

and

ä

) around the word

above the key to press.

The TI

-

86 on-screen division

symbol is a forward slash
(

à

), as in a fraction.

Following evaluation, the
entry cursor automatically
moves to the next line, ready
for a new entry.

When the TI

-

86 evaluates an

expression, it automatically
stores the answer to the built-
in variable Ans, replacing
any previous value.