This is a bit ironic, but have you tried the Numworks simulator app or any of its forks. I usually have excel sheets or python/matlab scripts. However, this si

This is a bit ironic, but have you tried the Numworks simulator app or any of its forks. I usually have excel sheets or python/matlab scripts. However, this simulator felt self-consistent enough to develop muscle memory for quick back-of-the-envelope work. https://github.com/UpsilonNumworks/Upsilon https://github.com/UpsilonNumworks/Upsilon https://www.numworks.com/simulator/download/ https://www.numworks.com/simulator/download/