Texas Instruments TI-89 Manual Book page 68

Recalling the Last
Answer
Note: Refer to ans() in
Appendix A.
Each time you evaluate an expression, the
answer to the variable
press 2 ±.
For example, calculate the area of a garden plot that is 1.7 meters by
4.2 meters. Then calculate the yield per square meter if the plot
produces a total of 147 tomatoes.
1. Find the area.
1.7 p 4.2 ¸
2. Find the yield.
147 e 2 ± ¸
Just as always contains the last answer,
ans(1)
also contain previous answers. For example,
next-to-last answer.
TI-89 / TI-92 Plus
. To insert this variable in the entry line,
ans(1)
Chapter 2: Operating the Calculator
stores the
Variable ans(1) is
inserted, and its value is
used in the calculation.
, , etc.,
ans(2) ans(3)
contains the
ans(2)
51