TI-84 Plus and TI-84 Plus Silver Edition Guidebook

CALC VARS

7: C/Y

Number of compounding periods/year

N, I%, PV, PMT, FV

Ú, æ,

PV

,

PMT

, and

FV

are the five

TVM

variables. They represent the elements of common financial transactions, as described in the table above.

æ is an annual interest rate that is converted to a per-period rate based on the values of

P/Y

and

C/Y

.

P/Y and C/Y

P/Y

is the number of payment periods per year in a financial transaction.

C/Y

is the number of compounding periods per year in the same transaction.

When you store a value to

P/Y

, the value for

C/Y

automatically changes to the same value. To store a unique value to

C/Y

, you must store the value to

C/Y

after you have stored a value to

P/Y

.

The EasyData™ Application

The Vernier EasyData™ application by Vernier Software & Technology allows you to view and analyze real-world data when the TI-84 Plus is connected to data collection devices such as Texas

Instruments CBR 2

é, CBL 2é, Vernier LabProê, Vernier USB sensors, Vernier Go!éMotion, or

Vernier Motion Detector Unit. The TI-84 Plus comes with the EasyData™ App already installed.

Note:

The application will only work with Vernier auto-ID sensors when using CBL 2

é and

Vernier LabPro

ê.

The EasyData™ App will autolaunch on your TI-84 Plus if you plug in a USB sensor such as the

CBR 2

é or Vernier USB Temperature sensor.

Steps for Running the EasyData™ App

Follow these basic steps when using the EasyData™ App.

Chapter 14: Applications 256

Starting the EasyData

™

App

1.

Attach your data collection device to your TI-84 Plus.

Make sure the cables are firmly connected.

2.

If the EasyData™ App has not auto-launched, press

Œ and the } or † to select the EasyData™ App.

3.

Press

Í. The EasyData™ information screen is displayed for about three seconds followed by the main screen.

Quitting the EasyData

™

App

1.

To quit the EasyData™ App, select

Quit

(press s

)

.

The

Ready to quit?

screen is displayed, which indicates that the collected data has been transferred to lists

L1

through

L4

on the TI-84 Plus.

2.

Press

OK

(press s) to quit.

EasyData™ Settings

Changing EasyData

™

settings

The EasyData™ App displays the most commonly used settings before data collection begins.

To change a predefined setting:

1.

From the main screen in the EasyData™ App, choose

Setup

and select

2: Time Graph

. The current settings are displayed on the calculator.

Note

: If using a motion detector, settings for

3: Distance Match

and

4: Ball Bounce

in the

Setup

menu are preset and cannot be changed.

2.

Select

Next

(press q) to move to the setting you want to change. Press ‘ to clear a setting.

3.

Repeat to cycle through the available options. When the option is correct, select

Next

to move to the next option.

4.

To change a setting, enter 1 or 2 digits, and then select

Next

(press q).

5.

When all the settings are correct, select

OK

(press s) to return to the main menu.

6.

Select

Start

(press q) to begin collecting data.

Restoring the EasyData

™

App to the default settings

The default settings are appropriate for a wide variety of sampling situations. If you are unsure of the best settings, begin with the default settings, and then adjust the settings for your specific activity.

To restore the default settings in the EasyData™ App while a data collection device is connected to the TI-84 Plus, choose

File

and select

1:New

.

Chapter 14: Applications 257

Starting and Stopping Data Collection

Starting Data Collection

To start sampling, select

Start

(press q). Sampling will automatically stop when the number of samples set in the

Time Graph Settings

menu is reached. The TI-84 Plus will then display a graph of the sampled data.

Stopping Data Collection

To stop sampling before it automatically stops, select

Stop

(press and hold q) at any time during the sampling process. When sampling stops, a graph of the sampled data is displayed.

Saving Collected Data

Collected data is automatically transferred to the TI-84 Plus and stored in lists

L1

through

L4

when data collection is complete. When you exit the EasyData™ App, a prompt reminds you of the lists in which time, distance, velocity, and acceleration are stored.

This manual describes basic operation for the EasyData2™ application. For more information about the EasyData2™ App, visit www.vernier.com

.

Chapter 14: Applications 258