Daniel BellingradtThe year is 1508, and to do your math properly, you needed two companios with nice hats. This calculating group was on the title page of a 'how to calculate correctly book' aimed to help merchants doing the trade. #skystorians
And here is the title page from Johannes Widmann's book "Behend vnd hüpsch Rechnung vff allen Kauffmanschafften" in full glory:
And if you want a have a look what maths they were explaining in this book, feel free to browse:
www.digitale-sammlungen.de/de/view/bsb0...
'behend vnd hüpsch rechnung vf...
'behend vnd hüpsch rechnung vf...
This one is for #MathSky and #bookhistory. Enjoy.
“Calculating properly, you say? In this economy?”