Education Technology

# Knowledge Base

## Solution 11783: Performing Vector Calculations in Polar Form Using the TI-83 Family, TI-84 Plus Family and TI-Nspire™ Handheld in TI-84 Plus Mode.

### How do I perform vector calculations in Polar form using the TI-83 family, TI-84 Plus family and TI-Nspire handheld in TI-84 Plus mode?

The example below will demonstrate how to perform vector calculations in Polar form using the TI-83 family, TI-84 Plus family and TI-Nspire handheld in TI-84 Plus mode.

Please Note: For this example, the mode settings will need to be changed.

1) Press [MODE].
2) Scroll down to FLOAT, scroll right to highlight the option for 2 and press [ENTER]. This will display the solution with 2 digits behind the decimal point.
3) Scroll down to RADIAN, scroll right to highlight the option for DEGREE and press [ENTER]. This will display the solution in degrees.
4) Scroll down to REAL, scroll right to highlight the option for re^θi and press [ENTER]. This will display the solution in Polar form.
5) Press [CLEAR] to return to the home screen.

Example: Add 1240° + 3067°.

1) Input 12 and press [2nd] [LN] to input the ex command.
2) Input 40 and press [2nd] [^] to input the π symbol. Press the [÷] key.
3) Input 180 and press [2nd] [.] to input the i (imaginary i) symbol.

Please Note: For TI-84 Plus family and TI-Nspire handheld in TI-84 Plus mode users, press the [►] key to begin new input. For TI-83 family users, press the [ ) ] key to begin new input.

4) Press the [+] key. Input 30 and press [2nd] [LN] to input the ex command.
5) Input 67 and press [2nd] [^] to input the π symbol. Press the [÷] key.
6) Input 180 and press [2nd] [.] to input the i (imaginary i) symbol.

Please Note: For TI-84 Plus family and TI-Nspire handheld in TI-84 Plus mode users, press the [►] key to finish the input. For TI-83 family users, press the [ ) ] key to finish the input.

7) Press [ENTER] to complete the calculation.

Please Note: The screenshot below was created using the TI-84 Plus family Operating System v 2.55MP.

Please see the TI-83 family and TI-84 Plus family guidebooks for additional information.

Please Note: TI-Nspire handheld in TI-84 Plus mode users may refer to the TI-84 Plus family guidebook.