Python – cmath.tan() function

cmath is Python built-in module that is used for complex number mathematics. cmath module has a method tan() that returns tangent of the complex number passed to it.

Syntax: cmath.tan(Z)

Parameter: It requires only one parameter i.e the number for which tangent needs to be calculated.

Return: Returns a complex number that is the tangent of the number passed.

Example 1: 

Python3

# Import the Library
import cmath

# Printing the result
print (cmath.tan(5 + 3j))

Output:

(-0.002708235836224072+1.0041647106948153j)

Example 2: In this example real number is passed but the returned result is still a complex number.

Python3

# Import the Library
import cmath

# Printing the result
print (cmath.tan(1))

Output:

(1.5574077246549023+0j)

Example 3: In this example no argument is passed in this case TypeError will be thrown

Python3

# Import the Library
import cmath

# Printing the result
print (cmath.tan())

Output:

TypeError: tan() takes exactly one argument (0 given)