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Math E

The E property gets the value of Euler's constant. This is approximately 2.718. <html>     <body>     <script language="JavaScript">     <!--     function doMath(){         var result = Math.E;         document.form1.answer.value = result;     }     -->     </script>     <form name=form1>     Click on the button to get Euler's constant.     <br><br>     Euler's constant is:     <input type="text" name="answer" size=20>     <input type="button" value="Calculate" onClick='doMath()'>     <br>     </form>     </body>     </html>