Math object in JavaScript
In JavaScript, object is the container of properties/variables and methods/functions. Math is the object which contains some methods to perform some standard mathematical functions.
Math properties and methods in JavaScript.
Example of Math Properties in JavaScript
document.write(Math.SQRT2+"<br>"); // returns the square root of 2
document.write(Math.SQRT1_2+"<br>"); // returns the square root of 1/2
document.write(Math.E+"<br>"); // returns Euler's number
document.write(Math.PI); // returns PI
Output:
The code above will display :
0.7071067811865476
2.718281828459045
3.141592653589793
Example of Math.sqrt() method
This method returns the square root of the given number
document.write(Math.sqrt(144));
Output:
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Example of Math.abs() method
This method returns the absolute value of the number
document.write(Math.abs(-20));
Output:
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Example of Math.min() method
This method returns the minimum value of the given values
document.write(Math.min(4,0,250,-3,50));
Output:
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Example of Math.max() method
This method returns the maximum value of the given values
document.write(Math.max(4,0,250,-3,50));
Output:
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Example of Math.trunc() method
This method returns the integer part of the number
document.write(Math.trunc(4.34));
Output:
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Example of Math.random() method
This method returns a random number between 0 and 1
document.write(Math.random());
Output:
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Another Example of Math.random() method
This code using Math.random() method to get a random value between 0 to 9
document.write(Math.trunc(Math.random()*10));
Output:
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Example of Math.log() method
This method returns the log of given number
document.write(Math.log(1));
Output:
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Example of Math.round() method
This method returns the nearest integer of the given number
document.write(Math.round(2.7));
Output:
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Example of Math.pow() method
This method returns the power of the given number
document.write(Math.pow(2,8));
Output:
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Example of Math.ceil() method
This method returns the upward value to its nearest integer.
document.write(Math.ceil(4.3));
Output:
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Example of Math.floor() method
This method returns the downward value to its nearest integer.
document.write(Math.floor(4.3));
Output:
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Example of Math.sign() method
This method finds that, if the number is positive, negative or zero
document.write(Math.sign(-43)+"<br>");
document.write(Math.sign(0)+"<br>");
document.write(Math.sign(4));
Output:
The code above will display :
0
1