Operation Manual

Chapter 1: Getting Started with the TI-84 Plus C Silver Edition 25

Using Ans in an Expression

When an expression is evaluated successfully from the home screen or from a program, the TI-84 Plus C

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-84 Plus C, the value in Ans is retained in memory.

You can use the variable

Ans to represent the last answer in most places. Press yZ to copy the

variable name Ans to the cursor location. When the expression is evaluated, the TI-84 Plus C 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.

Continuing an Expression

You can use Ans as the first entry in the next expression without entering the value again or pressing

yZ. On a blank line on the home screen, enter the function. The TI-84 Plus C pastes the variable

name

Ans to the screen, then the function.

Storing Answers

To store an answer, store Ans to a variable before you evaluate another expression.

Note: nPr, nCr, and xth root do not pull

Ans into the MathPrint™ template.

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.

Menus

Using Menus

You can access most TI-84 Plus C operations using menus. When you press a key or key combination to

display a menu, one or more menu names appear on the top line of the screen.

• The menu name on the left side of the top line is highlighted. Up to nine items in that menu are

displayed, beginning with item 1, which also is highlighted.

• A number or letter identifies each menu item’s place in the menu. The order is 1 through 9, then 0,

then A, B, C, and so on, if appropriate.

• When the menu continues beyond the displayed items, a down arrow ($) replaces the colon next to

the last displayed item.

1 Ë 7 ¯ 4 Ë 2

147 ¥ y Z

5 ¥ 2

¯ 9 Ë 9

y B

5 ¡

3 Ë 3

¿ ƒ