Texas Instruments TI-83 PLUS - Manual (Page 39)

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 Л 95
Н
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.