After reading the original 264 page user's guide, I came to a better appreciation of how much the original spreadsheet software, VisiCalc, actually did in 1979.

After reading the original 264 page user's guide, I came to a better appreciation of how much the original spreadsheet software, VisiCalc, actually did in 1979. And I see touches of it's design in all of spreadsheet software today. Hopefully I recreated it with loving faithfulness to the original.