Continuing An Expression - Texas Instruments TI-83 Manual Book

You can use the variable to represent the last answer in most places.
Ans
Press y Z to copy the variable name
to the cursor location. When
Ans
the expression is evaluated, the TI-83 Plus uses the value of in the
Ans
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 Z
Í

Continuing an Expression

You can use as the first entry in the next expression without entering
Ans
the value again or pressing y Z. On a blank line on the home
screen, enter the function. The TI-83 Plus pastes the variable name
Ans
to the screen, then the function.
5 ¥ 2
Í
¯ 9 Ë 9
Í
TI-83 Plus Operating the TI-83 Plus Silver Edition 37