How to make calculator

Question

please tell me who knows

Answer 1

See My one code Calculator

Answer 2

and Like If You Like My way

Answer 3

you need other programming languages

Answer 4

Please See My New code Basic Calculator its the easiest way for making a functional calculator

Answer 5

here is one simple to calculate sum of no.s
<p>Enter first no.</p><input id=firstno>
<p>Enter other no.</p><input id=othern>
<button onclick="function(){
var firstno=document. getElementById("firstno"),
othern=document.getElementById("othern"),
sum=document.getElementById("sum");
sum.value=firstno.value+othern.value;
}">
Calculate</button>
<p>Sum is <input id=sum></p>

actually it's not possible in only html you need javascript or other