Python math.sin() – Sine Function

Python math.sin()

math.sin(x) function returns the sine of x radians.

The return value lies in [-1, 1].

Syntax

The syntax to call sin() function is

math.sin(x)

where

ParameterRequiredDescription
xYesA numeric value that represents angle in radians.

Examples

In the following example, we find the sine of 0.5 radians using sin() function of math module.

Python Program

import math

x = 0.5 #radians
result = math.sin(x)
print('sin(x) :', result)
Run

Output

sin(x) : 0.479425538604203

We can take angle in degrees and convert the degrees into radians using math.radians() function, and then find the sine of this angle.

In the following program, we find the sine of 30 degrees.

Python Program

import math

x = 30 #degrees
x = math.radians(x) #radians
result = math.sin(x)
print('sin(x) :', result)
Run

Output

sin(x) : 0.49999999999999994

Summary

In this Python Examples tutorial, we learned the syntax of, and examples for math.sin() function.