Math.LOG2E : LOG2E « Math « JavaScript Tutorial

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JavaScript Tutorial » Math » LOG2E 
9. 16. 1. Math.LOG2E

The LOG2E property of the Math object calculates the base 2 logarithm of Euler's constant.

The return value is approximately 1.442.

 

    <html>
    <body>
    <script language="JavaScript">
    <!--
    function doMath(){
        var result = Math.LN2E;
        document.form1.answer.value = result;
    }
    -->
    </script>
    <form name=form1>
    The Base 2 logarithm of Euler's constant is:
    <input type="text" name="answer" size=20>
    <input type="button" value="Calculate" onClick='doMath()'>
    <br>
    </form>
    </body>
    </html>

        
9. 16. LOG2E
9. 16. 1. Math.LOG2E
9. 16. 2. The value of the Logarithm to base 2 of E: Math.LOG2E
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