The tan() function in R is “used to calculate the tangent of the numeric value”. The function accepts a numeric value as a parameter and returns the tangent value.
Syntax
tan(number)
Parameters
number: It is a numeric value.
Return value
The tan() function returns the tangent of a number (in radians) sent as a parameter.
Example 1: How to use the tan() function in R
x1 <- -45
x2 <- -60
tan(x1)
tan(x2)
Output
[1] -1.619775
[1] -0.3200404
Example 2: Passing the pi to the tan() function
The pi is a built-in constant whose value is 3.141593. Let’s pass the pi to the tan() function and see the output.
# Positive number in radians
data <- tan(2.1)
print(paste0("tan(2.1): ", data))
# Negative number in radians
data_a <- tan(-1.9)
print(paste0("tan(-1.9): ", data_a))
# Converting the degrees angle into radians and then applying tan()
data_b <- tan(45 * (pi / (180)))
print(paste0("tan(45 * (pi / (180))): ", data_b))
Output
[1] "tan(2.1): -1.70984654290451"
[1] "tan(-1.9): 2.92709751467777"
[1] "tan(45 * (pi / (180))): 1"
Example 3: Using a tan() function with Vector
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.

Krunal Lathiya is a Software Engineer with over eight years of experience. He has developed a strong foundation in computer science principles and a passion for problem-solving. In addition, Krunal has excellent knowledge of Data Science and Machine Learning, and he is an expert in R Language.