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

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

The atan () method returns the arc tangent value of x, expressed 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.

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8 #! /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)

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

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5. atan (0.64): 0.569313191101

Atan (0): 0.0

Atan (10): 1.4711276743

Atan (-1):-0.785398163397.

Atan (1): 0.785398163397