This calculator outputs what was computed each time
Simply type in a string such as 32 + 98 * 6
and click GO.
COMPUTE :
var session, ans = 0;
function init(){
session=document.getElementById("output");
}
function comp(id){
var input = document.getElementById(id);
var str = input.value;
ans = eval(str);
var ansNode = document.createTextNode("ans: " + str + " = " + ans);
var parNode = document.createElement("p");
parNode.appendChild(ansNode);
session.appendChild(parNode);
input.value="";
}