Why You Can't Bring Checkerboards to Math Exams
[A Chess Board Abacus is a Binary Calculator]

@WrathofMath _ https://youtu.be/_Qe_0aj4eEM
"A chessboard and a set of counters makes a formidable calculation device. This is from the final part of John Napier's treatise called Rabdologia, or Rabdology. He called it 'Location Arithmetic as Performed on a Chessboard'. This method of using counters on a chessboard is based on binary and basic algebraic properties, and with only sliding counters on a chessboard we can perform multiplication, division, and square roots, even square roots of irrationals. #maths #mathtricks #mathematics"
#Abacus #Calculator #AncientDevices #RetroMath #JohnNapier #Rabdologia #Rabdology #ChessBoard #Algebra

@[email protected] @[email protected] @[email protected] @[email protected]
Why You Can't Bring Checkerboards to Math Exams

YouTube