Last Updated : 15 Jul, 2024
The Math.PI is a property in JavaScript that 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 problems.
Syntax:Math.PIReturn values:
It simply returns the value of PI i.e, Π
Example 1: Here simply the value of PI is printed in the console.
JavaScript
// Here value of Math.PI is printed.
console.log(Math.PI);
Output:
3.141592653589793
Example 2: The value of PI i.e, Π can be printed in the form of a function as shown below.
JavaScript
// Function is being called.
function get_Value_of_PI() {
return Math.PI;
}
// Function is calling.
console.log(get_Value_of_PI());
Output:
3.141592653589793
Example 3: 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
// 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));
Output:
Error: Math.PI is not a function
Example 4: 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
// 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));
Output:
78.53981633974483
We have a complete list of Javascript Math Objects methods, to check those please go through this Javascript Math Object Complete reference article.
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