August 1999
Intermediate to advanced
1488 pages
72h 53m
English
Content preview from Pure JavaScript
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Math.LN2
JavaScript 1.0+, ECMAScript 1.0+, JScript 1.0+ Nav2+, NES2+, IE3+, Opera3+ Syntax
math.LN2
Description
The LN2 property of the Math object is used to get the natural logarithm of 2. This is approximately equal to 0.693.
Example
Listing 6.162 shows how the LN2 property is used to get the natural logarithm of 2.
Listing 6.162 Example of the LN2 Property
<html> <body> <script language="JavaScript"> <!–– Hide // function gets the natural log of 2 function doMath(){ var result = Math.LN2; document.form1.answer.value = result; } // End Hide ––> </script> <form name=form1> The Natural Logarithm of 2 is: <input type="text" name="answer" size=20> <input type="button" value="Calculate" onClick='doMath()'> <br> </form> </body> </html> ... |
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