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Finding Tangent on a Calculator: Step-by-Step Instructions

December 11, 2023 by JoyAnswer.org, Category : Mathematics

How to find tan on calculator? Follow step-by-step instructions to find the tangent using a calculator. This guide helps users navigate calculator functions to calculate tangents.

Finding Tangent on a Calculator: Step-by-Step Instructions

How to find tan on calculator?

Finding the tangent (tan) of an angle on a calculator is a straightforward process. Here are step-by-step instructions:

  1. Turn On the Calculator:

    • Ensure your calculator is turned on.
  2. Select the Angle Mode:

    • Determine whether your angle is in degrees, radians, or grads.
    • Most calculators have a mode setting (often labeled "DEG" for degrees, "RAD" for radians, or "GRAD" for grads).
    • Select the appropriate angle mode based on your calculation.
  3. Enter the Angle Value:

    • Enter the value of the angle for which you want to find the tangent.
    • Input the angle value using the numeric keypad on your calculator.
  4. Find the Tangent (tan):

    • Locate the "tan" button on your calculator. It may be labeled "tan" or have an abbreviation like "t."
    • Press the "tan" button.
  5. Complete the Calculation:

    • After pressing the "tan" button, the calculator will display the tangent of the entered angle.
    • If you entered an angle in degrees, the result will be in degrees. If you entered an angle in radians, the result will be in radians.

For example:

  • If you want to find the tangent of a 45-degree angle, enter "45," then press the "tan" button to get the tangent value.
  • If you want to find the tangent of a π/4 radians angle, enter "π/4" or the numerical approximation (e.g., 0.7854), then press the "tan" button.

Keep in mind that some calculators might have a single button labeled "tan" that performs the entire operation, while others might require you to enter the angle first and then press the "tan" button.

If you're using a scientific calculator or a graphing calculator, the process should be similar, but the layout of the buttons may vary. Consult your calculator's user manual if you encounter any difficulties specific to your calculator model.

What are the steps to calculate the tangent using a calculator?

Calculating the tangent using a calculator involves two main steps:

1. Setting the calculator mode to degrees or radians:

  • Most calculators have a button or menu option to switch between degree and radian mode. Make sure your calculator is set to the appropriate mode for the angle you are using.
  • For most everyday situations, degrees are the preferred mode.

2. Entering the angle value and pressing the "tan" button:

  • Enter the angle value on the calculator keypad.
  • Locate the "tan" button, which typically has the function "tan" or "tan^-1" (inverse tangent) written on it.
  • Press the "tan" button.
  • The calculator will display the tangent of the angle.

Here's an example:

Scenario: Calculate the tangent of 30 degrees.


  1. Set your calculator to degrees mode.
  2. Enter 30 on the keypad.
  3. Press the tan button.
  4. The calculator will display 0.5773502691896258, which is the tangent of 30 degrees.


  • Some calculators may have a separate button for the inverse tangent ("tan^-1"). This function is used to find the angle when you know the tangent.
  • If you are unsure of the mode your calculator is in, consult the user manual.
  • Be sure to enter the angle value correctly. For example, 30° is different from 30.

Here are some additional resources that you may find helpful:

Tags Tangent , Calculator , Instructions

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