Python atan () function
description
atan () returns the arctangent of x in radians.
grammar
The following is the syntax atan () method:
import math math.atan(x)
Note: atan () is not directly accessible, you need to import math module, and then call the method by math static objects.
parameter
- x - a value.
return value
Returns the arctangent of x in radians.
Examples
The following shows an example of the use of atan () method:
#!/usr/bin/python import math print "atan(0.64) : ", math.atan(0.64) print "atan(0) : ", math.atan(0) print "atan(10) : ", math.atan(10) print "atan(-1) : ", math.atan(-1) print "atan(1) : ", math.atan(1)
After running the above example output is:
atan(0.64) : 0.569313191101 atan(0) : 0.0 atan(10) : 1.4711276743 atan(-1) : -0.785398163397 atan(1) : 0.785398163397