上标计算Javascript变量

Question

我正在使用 javascript 进行变量计算，但我不知道如何在变量中使用上标。在一些帮助下我学会了如何进行一般计算，但我的新问题是如何使用上标？

<form name="Calcultor" Method="Get" id='form1'>First Number:
<input type="text" name="first" size="35" id="first">+ Second Number:
<input type="text" name="second" size="35" id="second">
 
<br>Answer:
<input type="text" name="ans" size="35" id="ans" />
<input type="text" name="ans2" size="35" id="ans2" />
<button type="button" onclick="Calculate();">Calculate</button>
</form>

<script>
function Calculate() {
    var first = document.getElementById('first').value;
    var second = document.getElementById('second').value;
 var ans = document.getElementById('ans').value;
 var ans2 = document.getElementById('ans2').value;
 
document.getElementById('ans').value = parseInt(first) + parseInt(second);
document.getElementById('ans2').value = 1.112 - 0.00043499 * parseInt(document.getElementById('ans').value)/*insert ans into a parenthensis*/ + 0.00000055 * parseInt(document.getElementById('ans').value)/*insert ans into a parenthensis and ^2 outside the parenthesis*/ - 0.00028826;

}
</script>

提前致谢

Answer 1

javascript中有函数Math.pow();

Math.pow(2,4) 给你 2^4 = 16.

Math.pow(2,4);
>16
Math.pow(2,4.1);
>17.148375400580687

Answer 2

<form name="Calcultor" Method="Get" id='form1'>First Number:
<input type="text" name="first" size="35" id="first">+ Second Number:
<input type="text" name="second" size="35" id="second">
 
<br>Answer:
<input type="text" name="ans" size="35" id="ans" />
<input type="text" name="ans2" size="35" id="ans2" />
<button type="button" onclick="Calculate();">Calculate</button>
</form>

<script>
function Calculate() {
    var first = document.getElementById('first').value;
    var second = document.getElementById('second').value;
 var ans = document.getElementById('ans').value;
 var ans2 = document.getElementById('ans2').value;
 
document.getElementById('ans').value = parseInt(first) + parseInt(second);
document.getElementById('ans2').value = 1.112 - 0.00043499 * parseInt(document.getElementById('ans').value) + 0.00000055 * Math.pow(parseInt(document.getElementById('ans').value), 2) - 0.00028826;

}
</script>

根据答案更新的代码段现在可以使用了！

上标计算Javascript变量

Superscript Calculation Javascript Variables

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