Calculator - Daily UI #004

Day 4! A simple calculator app. This time, I will keep working on this design as I want to develop this calculator app on Swift as an exercise.

I often find that I want to edit past calculations, because one of the variable has changed, and there's usually no easy way to do that on the native calculator app. An easily accessible history of past calculations will most likely prove useful.
Another thing I will develop is the "live visualization" of your result, as you are typing.

Here is a link to a simple Figma prototype of those 3 screens. It will become more comprehensive as I work to develop the app itself.
https://www.figma.com/proto/ZJ2iq0MgkEOqEXAFtlO3RY/Daily-UI?node-id=98%3A148&viewport=-1066%2C-793%2C0.30454349517822266&scaling=scale-down