An other philosophical point of vue.
Difficulty: 3.5/10
Clue: A mod 9 = 0
where A = any number found in the drawing.
Size: A3 - 297mm x 420mm
Did you know that:
- The arithmetic 'modulo' operator was introduced by Carl F. Gauss at the beginning of the XIXth Century. Familiar uses of modular arithmetic include the 12-hour clock, computing, ...
- The Braille system, a method widely used by blind people, originally developed by Charles Barbier and revised by Louis Braille, is a system representation of alphanumerical characters.
A rectangle may contain up to 6 dots (2 rows of 3 dots) and therefore allow to represent in the simplified form up to 64 alphanumerical characters (2^6).
This can be seen as a binary encoding scheme.
- Fibonacci number (Filius Bonaccio number) was well know in ancient india more than 1000 years before Fibonacci was born. This sequence of numbers was applied to their metrical sciences.
Sources:
Wikipedia: Modulo operatorWikipedia: BrailleWikipedia: Fibonacci numbermcs.surrey.ac.uk: Fibonacci