How to calculate trigonometric function cos () in Python

How to calculate trigonometric function cos () in Python

This article describes how to use the cos () method to calculate trigonometric functions in Python. It is the basic knowledge for getting started with Python. For more information, see

The cos () method returns the cosine of x radians.

Syntax

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

Cos (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 a value ranging from-1 to 1, representing the cosine of the angle.

Example

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

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8 #! /Usr/bin/python

Import math

Print "cos (3):", math. cos (3)

Print "cos (-3):", math. cos (-3)

Print "cos (0):", math. cos (0)

Print "cos (math. pi):", math. cos (math. pi)

Print "cos (2 * math. pi):", math. cos (2 * math. pi)

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

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5cos (3):-0.9899924966.

Cos (-3):-1, 0.9899924966

Cos (0): 1.0

Cos (math. pi):-1.0.

Cos (2 * math. pi): 1.0