Why You Can't Bring Checkerboards to Math Exams
Wrath of Math
@wrathofmathAbout
I teach math and rap sometimes. Check out my math fashion brand! mathshion.com
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Video Description
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 I just launched a math fashion brand at https://mathshion.com/ Check it out and pick up some of the coolest math merch of all time! Join Wrath of Math to get exclusive videos, lecture notes, and more: https://www.youtube.com/channel/UCyEKvaxi8mt9FMc62MHcliw/join Sources: Gamma: Exploring Euler's Constant by Julian Havil https://old.maa.org/press/periodicals/convergence/napiers-binary-chessboard-calculator-napiers-rabdologiae https://www.youtube.com/watch?v=WxuWzuvp_k0 Outro music available for channel members. 0:00 Intro 1:17 Multiplication 5:33 Division 11:33 Square Roots 17:59 Square Root of 2 20:48 Conclusion
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