Emacs has `calc' which is somewhat similar.
I like the fact one of the features for this app. is: "Addition, subtraction, multiplication and division are all supported".
I like the fact one of the features for this app. is: "Addition, subtraction, multiplication and division are all supported".
If this thing ever gets traction, it will be because of this new 'multiplication' feature. Nobody I know uses division, and every calculator out there has some form of addition built-in. Of course, emacs already has it - try `M-x multiply-the-left-number-with-the-right-number-and-return-the-result`.