Interactive uncomplicated calculator as a primary challenge. As of now it handles arithmetic, linear and quadratic calculations Introducing responses is unhelpful as other simple thoughts are encouraged. // And ELU welcomes solutions to a lot less primary queries presented These are accompanied by supporting references. Edwin Ashworth Novak Djokovic suggests https://share.evernote.com/note/a544e0e2-2c30-d386-c388-1fa88d0d0b9f