Math.LOG2E
JavaScript 1.0+, ECMAScript 1.0+, JScript 1.0+ Nav2+, NES2+, IE3+, Opera3+ Syntax
math.LOG2E
Description
The LOG2E property of the Math object calculates the base 2 logarithm of Euler's constant. The return value is approximately 1.442.
Example
Listing 6.165 shows how the LOG2E property is used.
Listing 6.165 Example of the log2E Property
<html> <body> <script language="JavaScript"> <!–– Hide function doMath(){ var result = Math.LN2E; document.form1.answer.value = result; } // End Hide ––> </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> |
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