I love Alexkdeveloper's calculator, but since the repository has been archived, I created a .sh version similar to his for personal use. However, I decided to share it in case anyone else might find it useful.
To use it, simply download the script and run:
chmod +x calc.shIt should work, but since this is my first repository, please forgive me if I missed anything.
sudo pacman -S yad bc sedsudo apt-get install yad bc sedsudo dnf install yad bc sed