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This section contains external links to many resources on digital root for you to probe further after you read my Digital root tutorial
References
- Jones, Lesley. Mathematics and Islamic Art. In: The Changing Shape of Geometry - Celebrating a century of Geometry and Geometry Teaching, Pritchard, C. (Ed), Mathematical Association of America, Cambridge University Press, 2003.
- Eric W. Weisstein. "Digital Root." From MathWorld --A Wolfram Web Resource. http://mathworld.wolfram.com/DigitalRoot.html
- http://hinduism.about.com/library/weekly/aa062901a.htm
Other tutorials
- Digital root pattern in a graph
- Bernard Bagnall wrote article about Digital roots
- Number trick using digital root
- YouTube video on using the digital root to check multiplication problems
- Teach digital root pattern on circular diagram
- Digit Sum Arithmetic by Thayer Watkins contains many properties of digital root
- Pattern in Digital Roots of Fibonacci Numbers by Daniel Fourie
- Digital root and magic square
Digital Root Games
- Fido puzzle
- mind reader of two digit sum
- card mind reader
- flash mind reader by Andy Naughton
Online Scientific Paper on Digital Root
- A. Gardiner (1982) Digital Roots, Rings and Clock Arithmetic , The Mathematical Gazette, Vol. 66, No. 437, pp. 184-188
- Pablo R. Hernandez (2009) Sobre la raz digital de los numeros primos .
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These tutorial is copyrighted .
Preferable reference for this tutorial is
Teknomo, Kardi (2005). Digital Root. https:\\people.revoledu.com\kardi\tutorial\DigitSum\