The Decline and Fall of Practically Everybody (1950), Part II: Ancient Greeks and Worse, Hannibal
“His work, called Aryabhatiya, is composed of three parts, in only the first of which use is made of a special notation of numbers. It is an alphabetical system in which the twenty-five consonants represent 1-25, respectively; other letters stand for 30, 40, …., 100 etc. The other mathematical parts of Aryabhatiya consists of rules without examples. Another alphabetic system prevailed in Southern India, the numbers 1-19 being designated by consonants, etc.”
Florian Cajori in: A History of Mathematical Notations http://books.google.co.in/books?id=_byqAAAAQBAJ&pg=PT961&dq=Notations&hl=en&sa=X&ei=Wz65U5WYDIKulAW1qIGYDA&ved=0CBwQ6AEwAA#v=onepage&q=Notation&f=false, Courier Dover Publications, 26 September 2013, p. 47.
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Aryabhata 11
Indian mathematician-astronomer 476–550Related quotes
Smithsonian magazine, May 1978, pp. 43, 44. Quoted in Awake! magazine, 1978, 8/22.
Bukhari 1:8 http://www.sacred-texts.com/isl/bukhari/bh1/bh1_07.htm
Sunni Hadith
Source: A Discourse of Combinations, Alterations, and Aliquot Parts (1685), Ch.I Of the variety of Elections, or Choice, in taking or leaving One or more, out of a certain Number of things proposed.
Source: 1960s, Fuzzy sets (1965), p. 338
“There are 2 rules in life:
Number 1- Never quit
Number2- Never forget rule number 1.”
Source: Systems Engineering Tools, (1965), Systems Engineering Methods (1967), p. 70; First sentences of Ch. 3. Formulating and Structuring the System
In this text Harold Chestnut is here citing:
C. West Churchman, Russell L. Ackoff, and E. Leonard Arnoff (1957) Introduction to Operations Research. Wiley. New York, and
J. Morley English (1964) "Understanding the Engineering Design Process." The Journal of Industrial Engineering, Nov-Dec. 1964 Vol 15 (6). p. 291-296