Texas Instruments TITANIUM TI-89 - Manual (Page 220)

Calculator Home Screen 220
Recalling the Last Answer Recalling the Last Answer Recalling the Last Answer Recalling the Last Answer
Each time you evaluate an expression, the TI-89 Titanium stores the answer to the
variable
ans(1) . To insert this variable in the entry line, 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.
Just as ans(1) always contains the last answer, ans(2) , ans(3) , etc., also contain previous
answers. For example, ans(2) contains the next-to-last answer.
Note: Refer to ans( ) in the Technical Reference module.
1. Find the area.
1.7 p 4.2 ¸
2. Find the yield.
147 e 2 ± ¸
If the entry line contains the last
entry,
2 `
recalls this entry.
If the entry line is edited or cleared,
2 `
recalls this entry.
Variable ans(1) is
inserted, and its value
is used in the
calculation.