1、乘方
<script>
var ikun = Math.pow(4,3);
console.log(ikun);
</script>
2、开根号
<script>
var ikun = Math.sqrt(64);
console.log(ikun);
</script>
开根号后还可以再次开根号
<script>
var ikun = Math.sqrt( Math.sqrt(81));
console.log(ikun);
</script>