Operation Manual

TI-83 Plus Operating the TI-83 Plus Silver Edition 36
For the equation A=
p
r
2
, use trial and error to find the radius of a circle that covers 200
square centimeters. Use 8 as your first guess.
8
¿ ƒ
R
ƒ
[
:
]
y B
ƒ
R
¡ Í y [
y |
7
y 6 Ë
95
Í
Continue until the answer is as accurate as you want.
Clearing ENTRY
Clear Entries
(Chapter 18) clears all data that the TI-83 Plus is holding in
the
ENTRY
storage area.
Using Ans in an Expression
When an expression is evaluated successfully from the home screen or
from a program, the TI-83 Plus stores the answer to a storage area
called
Ans
(last answer).
Ans
may be a real or complex number, a list, a
matrix, or a string. When you turn off the TI-83 Plus, the value in
Ans
is
retained in memory.