JavaScript Math PI Property

Last Updated : 10 Jul, 2020

Below is the example of the Math PI Property.

Example:

<script>

// Here value of Math.PI is printed.

document.write(Math.PI);

</script>
Output:
```
3.141592653589793
```

The Math.PI is a property in JavaScript which is simply used to find the value of Pi i.e, in symbolic form Π which is nothing but it is the ratio of the circumference of a circle to its diameter, whose value is approximately 3.141. It is mainly used in a mathematics problem.

Syntax:

Math.PI

Return values: It simply return the value of PI i.e, Π

Below example illustrates the Math LOG10E property in JavaScript.

Example: Here simply value of PI i.e, Π is shown as output.

Input : Math.PI
Output : 3.141592653589793

More codes for the above property are as follows:

Program 1:Value of PI i.e, Π can be printed as in the form of function as shown below.

<script> 
  // function is being called. 
  function get_Value_of_PI() 
  { 
      return Math.PI; 
  } 
  
  // function is calling. 
  document.write(get_Value_of_PI()); 
</script> 

Output:

3.141592653589793

Program 2: Here we consider Math.PI as a function but in actual it is a property that is why error as output is being shown.

<script> 
  // Here we consider Math.PI as a function but 
  // in actual it is a property that is why error 
  // as output is being shown. 
  document.write(Math.PI(12)); 
</script> 

Output:

Error: Math.PI is not a function

Program 3: Whenever we need to find the value of anything related to PI that time we take the help of this property. In mathematics, it needed a lot. Here we are going to find the value of the area of a circle with the given value of its radius.

<script> 
  // function is being called with radius 5 as a parameter. 
  function area_of_circle(radius_of_the_circle) 
  { 
      return Math.PI * radius_of_the_circle * radius_of_the_circle; 
  } 
  
  // Here area of the circle is 5 unit. 
  document.write(area_of_circle(5)); 
</script> 

Output:

78.53981633974483

Supported Browsers:

Google Chrome
Internet Explorer
Firefox
Opera
Safari

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