Hi!
I can help to build calculator. I'm a full-stack developer with more than 10 years of work experience.
Expert in BOTH Backend and Front-end Programming, PHP - OOP, MVC, REST API, HTML/CSS/JAVASCRIPT, Codeigniter, Laravel, Angular Js, React, Node JS, Wordpress, Woocommerce/Ecommerce, Magneto, Shopify, Responsive Design, Plugin Development, Adaptive websites, Android and IOS App Development.
I'm interested to hear more about the project and about the subject matter of the calculators. If you award me the project I'd be very happy to discuss this further and get started for you as soon as possible.
Kind Regards,
Vivek