JavaScript Math PI Property
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.
// Here value of Math.PI is printed.
console.log(Math.PI);
Output:
3.141592653589793Example 2: The value of PI i.e, Π can be printed in the form of a function as shown below.
// Function is being called.
function get_Value_of_PI() {
return Math.PI;
}
// Function is calling.
console.log(get_Value_of_PI());
Output:
3.141592653589793Example 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.
// 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 functionExample 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.
// 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:
78.53981633974483We have a complete list of Javascript Math Objects methods, to check those please go through this Javascript Math Object Complete reference article.
Supported Browsers:
- Chrome 51
- Edge 15
- Firefox 54
- Safari 10
- Opera 38
JavaScript Math.PI Property – FAQs
What is Math.PI in JavaScript?
Math.PIis a static property of the Math object in JavaScript that represents the value of π (pi), approximately 3.14159.
Can you modify the value of Math.PI?
No,
Math.PIis a read-only property. It cannot be changed.
What are common uses of Math.PI?
Math.PIis used in mathematical calculations involving circles, such as finding the circumference or area of a circle.
Is Math.PI an exact value of π?
No,
Math.PIis an approximation of π. Computers cannot store π’s exact value because it is an irrational number with an infinite number of decimal places.
Can Math.PI be used in other mathematical functions?
Yes,
Math.PIcan be used with various mathematical functions to perform more complex calculations involving trigonometry, geometry, and other fields.
