11.2.17 sqrt方法.html

来自「即学即用JavaScript核心对象参考手册原版光盘」· HTML 代码 · 共 8 行

<script>
   with (document)
   {
      write("sqrt(9)="+Math.sqrt(9));
      write("<br>sqrt(2)="+Math.sqrt(2));
      write("<br>sqrt(-9)="+Math.sqrt(-9));
   }
</script>