Knowledge Base

Solution 34755: Performing Vector Calculations in Polar Form Using the TI-84 Plus C Silver Edition Graphing Handheld.

How do I perform vector calculations in Polar form using the TI-84 Plus C Silver Edition graphing handheld?

The example below will demonstrate how to perform vector calculations in Polar form using the TI-84 Plus C Silver Edition graphing handheld.

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

• Press [MODE].
• Press [▼] [►] [►] [►].
Press [ENTER]. This will set the settings to show solutions to the hundredth decimal point.
• Press [▼] [►] [ENTER]. This will display the solution in Degrees.
• Press [▼] [▼] [▼] [▼] [►] [►] to highlight the option for re^θi .
• Press [ENTER]. This will display the solution in Polar form.
• Press [CLEAR] to return to the home screen

Example: Add 12∠40° + 30∠67°.

• Press [1] [2] [2ND] [e^x].
• Press [4] [0] [2ND] [π].
Press [÷].
• Press [1] [8] [0].
• Press [2ND] [i].
• If in MATH PRINT mode, press [►] to begin new input. If in CLASSIC mode, press [ ) ] to begin new input.

• Press [+].
• Press [3] [0].
• Press [2ND] [e^x].
• Press [6] [7].
• Press [2ND] [π] [÷].
• Press [1] [8] [0].
Press [2ND] [i].
If in MATH PRINT mode, press [►] to finish the input. If in CLASSIC mode, press [ ) ] to finish the input.
• Press [ENTER] to complete the calculation.

Please see the TI-84 Plus C Silver Edition guidebook for additional information.