Texas Instruments TI-84 PLUS - Graphing Calculator Manual Book page 31

When you press y [, all the expressions and instructions separated by colons are pasted to
the current cursor location. You can edit any of the entries, and then execute all of them when you
press Í.
Example: For the equation A=pr
square centimeters. Use 8 as your first guess.
¿ ƒ ƒ ã
8 R
y B ƒ ¡ Í
R
y [
y | y 6 Ë
7 95
Í
Continue until the answer is as accurate as you want.
Clearing ENTRY
(Chapter 18) clears all data that the TI-84 Plus is holding in the
Clear Entries
Using Ans in an Expression
When an expression is evaluated successfully from the home screen or from a program, the TI-84
Plus stores the answer to a storage area called
number, a list, a matrix, or a string. When you turn off the TI-84 Plus, the value in
memory.
You can use the variable
variable name to the cursor location. When the expression is evaluated, the TI-84 Plus uses the
Ans
value of in the calculation.
Ans
Calculate the area of a garden plot 1.7 meters by 4.2 meters. Then calculate the yield per square
meter if the plot produces a total of 147 tomatoes.
Ë ¯ Ë
1 7 4 2
Í
¥ y Z
147
Í
2
, use trial and error to find the radius of a circle that covers 200
: ä
to represent the last answer in most places. Press y Z to copy the
Ans
Chapter 1: Operating the TI-84 Plus Silver Edition
(last answer).
Ans Ans
storage area.
ENTRY
may be a real or complex
is retained in
Ans
24