beautypg.com

Converting a value expressed as a rate, Number bases – Texas Instruments TI-86 User Manual

Page 77

background image

Chapter 4: Constants, Conversions, Bases, and Complex Numbers

65

04CCCB.DOC TI-86, Chap 4, US English Bob Fedorisko Revised: 02/13/01 2:20 PM Printed: 02/13/01 3:01 PM Page 65 of 16

04CCCB.DOC TI-86, Chap 4, US English Bob Fedorisko Revised: 02/13/01 2:20 PM Printed: 02/13/01 3:01 PM Page 65 of 16

Converting a Value Expressed as a Rate

To convert a value expressed as a rate on the home screen, you can use parentheses and
the division operator (

à

). For example, if a car travels 325 miles in 4 hours, and you want

to know the rate of speed in kilometers per hour, enter this expression:

(325

à

4)mi

à

hr

4

km

à

hr

This expression returns

131

km

àhr (rounded up).

You also can return this result using only a forward slash, as in:

325mile

4

km

à

4hr

4

hr

Number Bases

The number base mode setting (Chapter 1) controls how the TI

-86 interprets an entered

number and displays results on the home screen. However, you can enter numbers in any
number base using number base designators Ь, Э, Ю, and ß. Then you can display the result
on the home screen in any number base using number base conversions.

All numbers are stored internally as decimal. If you perform an operation in a mode setting
other than

Dec

, the TI

-86 performs integer mathematics, truncating to an integer after every

calculation and expression.

For example, in

Hex

mode,

1

à

3+7

returns

7h

(1 divided by 3, truncated to 0, and then added to 7).

To enter a forward slash
(

à

), you can use the

F

key

or paste it from the
CATALOG

.