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Mathematics
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Copyright informationCOPYRIGHT 2002 The Gale Group Inc. This material is published under license from the publisher through the Gale Group, Farmington Hills, Michigan. All inquiries regarding rights should be directed to the Gale Group. (Hide copyright information)
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Bases
Although the number system commonly used for counting and measuring is based on the number 10 and is known as the decimal system, there are counting systems based on other numbers. For example,
base-2
and
base-60
number systems are also used for counting. Base-2, known as the
binary number
system, is used in electronic computers and other electrical devices. Time on a clock is partially measured in the base-60 system. Each hour is divided into 60 minutes and each minute is divided into 60 seconds. This entry will introduce the
base-10
and base-2 number systems.
Base-10 Number System
Because humans have ten fingers, objects are naturally grouped in tens when ...
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189 words
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bit(4)
Webster's NewWorld Dictionary;
43 words
...Webster's NewWorld Dictionary 01-01-1988 bit(4) (bit) n. 1. a single digit in a binary number system 2. a unit of information equal to the amount of information obtained by learning which of two equally likely events occurred Copyright 1994, 1991, 1988 Simon & Schuster, Inc.
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numeral
The Concise Oxford Dictionary of Mathematics;
51 words
......5, 10, 50, 100, 500 and 1000 in the Roman number system. The Arabic numerals 0, 1, 2, 3, 4, 5, 6, 7, 8 and 9 are used in the Hindu–Arabic number system to give numbers in the form generally familiar today. See number system .
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binary number
The Concise Oxford Dictionary of Mathematics;
20 words
...binary number A number expressed in binary notation so the binary number 1101 = 1 × 2 3 + 1 × 2 2 + 0 + 1 or 13 in base 10.
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The Christian Science Monitor;
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417 words
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number systems
The Concise Oxford Dictionary of Mathematics;
199 words
...number systems The early Egyptian number system used different symbols for 1, 10, 100...of different powers of 60. The Greek number system used letters to stand for numbers...represented 10, 20, 30 and 40. The Roman number system is still known today and used for some...
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652 words
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The World Almanac and Book of Facts 2002;
700+ words
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A Dictionary of Weights, Measures, and Units;
122 words
...bit [binary digit] The single two-valued digit in the binary number system. informatics From the above, the fundamental measure of memory and transmission capacities, corresponding to a single two-state...
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OUR OPINION; Local student corrects MCAS test
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179 words
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decimal system
A Dictionary of Physics;
57 words
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Digital division for fast computing.
Science News;
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377 words
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The Washington Post;
April 17, 1993 ;
195 words
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