Explain the Number Function ' TAN ' in Tableau with Example?

In Tableau, the TAN function is a number function that returns the tangent of a given angle. It calculates the trigonometric tangent value of an angle expressed in radians.

The syntax for the TAN function in Tableau is as follows:

TAN(angle)

• angle represents the angle in radians for which you want to calculate the tangent.

Here's an example to illustrate the usage of the TAN function in Tableau:

Suppose you have a dataset with a column called "Angle" that contains different angle values in radians.

Angle
0.524
1.047
1.571
2.094

To calculate the tangent of each angle in the "Angle" column using the TAN function, you can create a calculated field in Tableau:

1. Right-click on a blank area in the "Data" pane in Tableau.
2. Select "Create Calculated Field."
3. In the formula editor, enter the following expression:

TAN([Angle])

4. Click "OK" to create the calculated field.

The calculated field, which utilizes the TAN function, will calculate the tangent value of each angle in the "Angle" column.

The resulting dataset will be as follows:

Angle	Tangent
0.524	0.577
1.047	1.732
1.571	Infinity
2.094	-1.732

In this example, the TAN function calculates the tangent value for each angle in the "Angle" column. For instance, the angle of 0.524 radians has a tangent value of approximately 0.577, the angle of 1.047 radians has a tangent value of approximately 1.732, the angle of 1.571 radians has a tangent value of infinity (as the tangent of 90 degrees is undefined), and the angle of 2.094 radians has a tangent value of approximately -1.732.

The TAN function is commonly used in trigonometry and geometry calculations, where the tangent value of an angle is required. It is useful for analyzing slopes, inclines, and angular relationships. By utilizing the TAN function in Tableau, you can easily incorporate trigonometric calculations into your visualizations and gain insights from your data.