There are the "calculator notepad" apps like Soulver, Calca, Numi and I‘m sure some open source options as well. I use Calca on my phone quite a bit, but someth

There are the "calculator notepad" apps like Soulver, Calca, Numi and I‘m sure some open source options as well. I use Calca on my phone quite a bit, but something with an actual table could be interesting.