Hello
So I installed Uno Calculator from AUR. It’s the Windows calculator clone.
I’ve discovered there is (no paste from clipboard function).
Even a basic calculator should have copy/paste function.
Are there any hacks to enable clipboard-paste into Uno-Calculator application?
Thanks
Did this support pasting from the clipboard? 
Looking at the UI of UNO calculator, it seems like the numbers are input in a label programmatically, rather than having a an editable text box. So copy paste doesn’t look possible at first glance.
Going out of direction, I’ll suggest you to use a different calculator application if you really need copy paste function. These won’t have a very polised user interface as compared to Uno, but they have the features you’d need.
qalculate looks feature-full. I haven’t used this. https://www.archlinux.org/packages/extra/x86_64/qalculate-gtk/
If you need units converter, then there is “convert all”, which I sometimes use. I have it installed just in case I need it. Has many units to convert. https://aur.archlinux.org/packages/convertall/
If you are comfortable using the terminal, then there is quich. This is the one I mainly use. https://aur.archlinux.org/packages/quich/
Galculator allows SOME cut/paste actions - have you tried that? Number of modes, (including paper mode and scientific) and reasonably capable…
Not familiar with Windows anymore - when they added to EULA to XP I was outta there… 
Even though Windows ME was actually good to me.
Well since I just require a “dumbed-down” calculator I installed Superbcalc which I use to easily calculate percentages.
And I use Pantheon or Galculator for general usage.
I just found Uno Calculator to have a polished look with large displayed numbers that is nice.
Thanks
The first thing I do when I install EOS is uninstall Gcalculator and install gnome-calculator (if i forgot to un-check it in live installer in the first place). In my opinion it’s the best there is. I like it has history and allows writing multiple operations in one go. If you click on a line in history it brings back those numbers so you can work with them. It’s a real productivity improving tool. I’m missing most of its features when working on my phone.
Also it looks dumb enough for me while still looking pretty good.
And then there’s me, who compiled extcalc…