Python3 atan() Function

Python3 数字Python3 Numbers


Description

atan()Returns the arctangent of x in radians.


Syntax

Following is the syntax of the atan() method:

import math

math.atan(x)

Note:atan() is not accessible directly; you need to import the math module and then call this method via the math static object.


Parameters

  • x -- A numeric value.

Return Value

Returns the arctangent of x in radians.


Examples

The following example demonstrates the use of the atan() method:

#!/usr/bin/python3
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))

The output of the above example is:

atan(0.64) :  0.5693131911006619
atan(0) :  0.0
atan(10) :  1.4711276743037347
atan(-1) :  -0.7853981633974483
atan(1) :  0.7853981633974483

Python3 数字Python3 Numbers

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