JavaScript Math PI Property

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 mathematics problem.

Syntax:

Math.PI

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

Below is an example of the Math PI Property. 

Example:

Javascript

<script>
  // Here value of Math.PI is printed.
 console.log(Math.PI);
</script>

Output:

3.141592653589793

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 in the form of a function as shown below.  

Javascript

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

  // function is calling.
  console.log(get_Value_of_PI());
</script>

Output:

3.141592653589793

Program 2: Here we consider Math.PI is a function but in actuality, it is a property which is why the error as output is being shown. 

Javascript

<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.
  console.log(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. 

Javascript

<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.
  console.log(area_of_circle(5));
</script>

Output:

78.53981633974483

Supported Browsers:

• Google Chrome 1 and above
• Edge 12 and above
• Internet Explorer 3 and above
• Firefox 1 and above
• Opera 3 and above
• Safari 1 and above