Texas Instruments TI-86 - Manual (Page 20)

8
Quick Start
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 8 of 14
Retrieving, Editing, and Re-evaluating the Previous Entry
ᕡ Retrieve the last entry from the previous
example. (The last activity was not cleared.)
- ¢
ᕢ Edit the retrieved entry. ! ! 3
ᕣ Evaluate. The first derivative of x 2 with
respect to x at 3 is displayed.
b
Converting Degrees Fahrenheit to Degrees Celsius
ᕡ Display the CONV menu. (:) - ’
ᕢ Display the CONV TEMP menu. The CONV
menu shifts up and TEMP is highlighted.
*
ᕣ Enter the known measurement. If the
measurement is negative, use parentheses.
In this example, if you omit parentheses,
the TI
-86 converts 4¡F to about L15.5¡C,
which it then negates (changes the sign
of), returning a positive 15.5
¡C.
D a 4 E
ᕤ Select ¡ F to designate Fahrenheit as the
known measurement unit. ¡ F and the
conversion symbol ( 4 ) are displayed after
the measurement. (continued)
'
When you press b , the
TI - 86 stores the expression
or instruction you entered to
the built-in memory storage
area called ENTRY.
When expressing a
measurement for a
conversion, you do not enter
a unit symbol manually. For
example, you need not enter
¡ to designate degrees.