Math Methods tutorial in JavaScript

 <!DOCTYPE html>

<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0, shrink-to-fit=no">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>Math Methods JavaScript</title>
    <script>
        //ceil() function will give upword value
        var a = Math.ceil(5.2);
        document.write(a + "<br>");
        var a2 = Math.ceil(-2.35);
        document.write(a2 + "<br><br>");

        //floor() function will give downword value
        var a3 = Math.floor(2.85);
        document.write(a3 + "<br>");
        var a4 = Math.floor(5.10);
        document.write(a4 + "<br>");
        var a5 = Math.floor(-2.60);
        document.write(a5 + "<br>");
        var a6 = Math.floor(-5.39);
        document.write(a6 + "<br>");
        var a7 = Math.floor(0.60);
        document.write(a7 + "<br><br>");

        //round() function will give nearest integer value
        var a8 = Math.round(0.60);
        document.write(a8 + "<br>");
        var a9 = Math.round(2.40);
        document.write(a9 + "<br>");
        var a10 = Math.round(2.60);
        document.write(a10 + "<br>");
        var a11 = Math.round(2.50);
        document.write(a11 + "<br>");
        var a12 = Math.round(2.49);
        document.write(a12 + "<br><br>");

        //trunc() function will give only integer value. trunc() function will neglect value after point
        var a13 = Math.trunc(2.49);
        document.write(a13 + "<br>");
        var a14 = Math.trunc(8.19);
        document.write(a14 + "<br><br>");

        //max() function will give maximum number
        var a15 = Math.max(8, 10, 2, 50, 25);
        document.write(a15 + "<br>");
        var a16 = Math.min(8, 10, 2, 50, 25);
        document.write(a16 + "<br>");
        var a17 = Math.min(-10, -2);
        document.write(a17 + "<br>");
        var a18 = Math.max(-10, -2);
        document.write(a18 + "<br><br>");

        var a19 = Math.sqrt(4);
        document.write(a19 + "<br>");
        var a20 = Math.sqrt(49);
        document.write(a20 + "<br><br>");

        var a21 = Math.cbrt(125);
        document.write(a21 + "<br>");
        var a22 = Math.cbrt(512);
        document.write(a22 + "<br><br>");

        //pow() function will give power of given number
        var a23 = Math.pow(4, 3);
        document.write(a23 + "<br>");
        var a24 = Math.pow(2., 3);
        document.write(a24 + "<br><br>");

        //random() function will give random value between 0 and 1 by default
        var a25 = Math.random();
        document.write(a25 + "<br>");
        //If we want to take value from 1 to 10 then we have to calculate some mathematical operation
        //as shown below :
        var a26 = (Math.random() * 10) + 1;
        document.write(a26 + "<br>");
        var a27 = Math.floor(Math.random() * 10) + 1;
        document.write(a27 + "<br>");
        //If we want to take value from 1 to 100 then we have to calculate some mathematical operation
        //as shown below :
        var a28 = Math.floor(Math.random() * 100) + 1;
        document.write(a28 + "<br><br>");

        //abs() function will give absolute value
        var a29 = Math.abs(5.25);
        document.write(a29 + "<br>");
        var a30 = Math.abs(-5.25);
        document.write(a30 + "<br>");
        var a31 = Math.abs(null);
        document.write(a31 + "<br>");
        var a32 = Math.abs("Hello");
        document.write(a32 + "<br>");
        var a33 = Math.abs(2 + 3);
        document.write(a33 + "<br><br>");

        //PI will give mathematical constant value 3.14 OR 22/7
        var a34 = Math.PI;
        document.write(a34);
    </script>
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