11.2.8 exp方法.html

javascript即用即差核心对象手册

<script>
   with(document)
   {
      //返回exp函数的几个算例
      write(e(-2));
      write(e(0));
      write(e(2));
   }
   //自定义函数返回exp函数值
   function e(x)
   {
      var xstr=new String(x);
      var rstr= "e"+xstr.sup()+"="+Math.exp(x);
      return rstr+"<br>";
   }
</script>