tan() Function in R with Example

In a right-angled triangle, the tangent of an angle is:

The length of the side opposite the angle divided by the length of the adjacent side.

The abbreviation is tan is the following.

tan(θ) = opposite / adjacent

tan() Function in R

The tan() is an inbuilt mathematical R function that calculates the tangent value of numeric value. The tanpi() method calculates the tangent of the input value, the multiples of π.

To calculate the tangent in R programming, use the tan() function.

Syntax

tan(x)

Parameters

The tan() function takes a numeric value.

Example

x1 <- -45
x2 <- -60

tan(x1)
tan(x2)

Output

[1] -1.619775
[1] -0.3200404

Applying pi to the tan() function

The pi is an inbuilt constant whose value is 3.141593. Let’s pass the pi to the tan() function and see the output.

x1 <- pi
x2 <- pi / 3

tan(x1)
tan(x2)

Output

[1] -1.224647e-16
[1] 1.732051

Applying a tan() function to Vector

To create a Vector in R, use the c() function. Let’s create a vector and pass that vector to the tanpi() function.

dt <- c(1, 0.5, -1, -0.25, 0.5, 2 / 3)
tanpi(dt)

Output

[1] 0.000000  NaN  0.000000  -1.000000  NaN  -1.732051
Warning message:
In tanpi(dt) : NaNs produced

That is it for tan() function in R.

See also

R sin()

R cos()

R exp()

R log()

R floor()