User's Manual

1-18 Operating the TI
-
83
8301OPER.DOC TI-83 international English Bob Fedorisko Revised: 02/19/01 12:09 PM Printed: 02/19/01 1:34
PM Page 18 of 24
When an expression is evaluated successfully from the
home screen or from a program, the TI
.
83 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, the value in
Ans is retained in
memory.
You can use the variable
Ans to represent the last answer in
most places. Press
y
[
ANS
] to copy the variable name Ans
to the cursor location. When the expression is evaluated, the
TI
.
83 uses the value of
Ans in the calculation.
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.
1
Ë
7
¯
4
Ë
2
Í
147
¥ y
[
ANS
]
Í
You can use Ans as the first entry in the next expression
without entering the value again or pressing
y
[
ANS
]. On
a blank line on the home screen, enter the function. The
TI
.
83 pastes the variable name
Ans to the screen, then the
function.
5
¥
2
Í
¯
9
Ë
9
Í
To store an answer, store Ans to a variable before you
evaluate another expression.
Calculate the area of a circle of radius 5 meters. Next, calculate
the volume of a cylinder of radius 5 meters and height 3.3 meters,
and then store the result in the variable V.
y
[
p
] 5
¡
Í
¯
3
Ë
3
Í
¿ ƒ
V
Í
Ans (Last Answer) Storage Area
Using Ans in an
Expression
Continuing an
Expression
Storing Answers