Use the atan () method to calculate trigonometric functions in Python

This article mainly introduces how to use the atan () method of Python to calculate trigonometric functions. It is the basic knowledge for getting started with Python. For more information, see atan () returns the arc tangent of x in radians.
Syntax

The syntax of the atan () method is as follows:

Atan (x)

Note: This function cannot be directly accessed. Therefore, we need to import the math module and then use the static object of math to call this function.
Parameters

• X -- this must be a value.

Return Value

This method returns the arc tangent value of x, expressed in radians.
Example

The following example shows how to use the atan () method.

#! /Usr/bin/pythonimport mathprint "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)

When we run the above program, it will produce the following results:

Atan (0.64): 0.569313191101 atan (0): 0.0 atan (10): 1.4711276743 atan (-1):-0.785398163397 atan (1): 0.785398163397