[Feature request] History formula copying

[navid-zamani]

Quite often, I did enter some complex formula, and press =, but then want to go back, and use the previous formula, and edit it, to get different results.

Like, even with basic adding up for budgeting during shopping, I want to remove the third item and get the sum, without entering everything again.

This could be very easy to solve:
Instead of each calculation being one line in history, it would be two. The calculation, and the result. (One of them shaded for contrast.) Tapping on a line would simply cause its entire contents to be pasted at the current cursor position into the currently entered formula. So simpler than what’s implemented now. :)

(Meta: In general, each calculator in F-Droid seems to miss at least one basic feature of a full set: A history, history re-usage, history pasting, formula re-usage, formula pasting, scientific functions, inverse functions (e.g. root for square, atan for tan, and so on), or some other non-evil function that Google’s official calculator has. Essentially we just want a Google Calculator app without the Google evil data kraken condescending smart toxicity. … Yours is currently the closest one on F-Droid btw. 🙂 … Unless of course somebody wants to port the best calculator in existence to Android: Qalculate! … [It even allows solving for x or simplifying formulas, and has many settings and functions, but without being a mathematics suite or programming language.])