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Python Number tan() Function


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Description:

This function returns the tangent of x radians.

Syntax:

tan(x)

Note: This function is not accessible directly so we need to import math module and then we need to call this function using math static object.

Parameters:

Here is the detail of parameters:

  • x: Must be a numeric value

Return Value:

The tan() function returns a numeric value between -1 and 1, which represents the tangent of the parameter x.

Example:

#!/usr/bin/python
import math

print "tan(3) : ",  math.tan(3)
print "tan(-3) : ",  math.tan(-3)
print "tan(0) : ",  math.tan(0)
print "tan(math.pi) : ",  math.tan(math.pi)
print "tan(math.pi/2) : ",  math.tan(math.pi/2)
print "tan(math.pi/4) : ",  math.tan(math.pi/4)

This will produce following result:

tan(3) :  -0.142546543074
tan(-3) :  0.142546543074
tan(0) :  0.0
tan(math.pi) :  -1.22460635382e-16
tan(math.pi/2) :  1.63317787284e+16
tan(math.pi/4) :  1.0


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