//**************************************
// Name: Calculator in PHP using Drop Down Menu
// Description:A simple calculator program that I wrote in PHP using Drop Down Menu to select the mathematical operator such as addition, subtraction, multiplication and division using combo box in HTML.
Add me at Facebook my address is jakerpomperada@gmail.com and jakerpomperada@yahoo.com.
My mobile number here in the Philippines is 09173084360.
// By: Jake R. Pomperada
//
//
// Inputs:None
//
// Returns:None
//
//Assumes:None
//
//Side Effects:None
//**************************************

 

 

function add_number() {

var first_number = parseInt(document.getElementById(“Text1”).value);
var second_number = parseInt(document.getElementById(“Text2”).value);
var result = first_number + second_number;

document.getElementById(“txtresult”).value = result;
}

Simple Calculator




Result is



 

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