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Abacus - Wikipedia
https://en.wikipedia.org/wiki/Abacus
WEBAbacus. An abacus ( pl.: abaci or abacuses ), also called a counting frame, is a hand -operated calculating tool which was used from ancient times in the ancient Near East, Europe, China, and Russia, until the adoption of the Hindu-Arabic numeral system. [1] An abacus consists of a two-dimensional array of slidable beads (or similar objects).
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How to Use an Abacus (with Pictures) - wikiHow
https://www.wikihow.com/Use-an-Abacus
WEBJul 26, 2023 · 1. Leave space for your answer to the right of the divisor and the dividend. When dividing on an abacus, you will put the divisor in the left-most column (s). Leave a couple blank columns to the right, then put the dividend in the columns next to those. Views: 2.5M
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ABaCAS
http://abacas-dss.com/abacas/Publication.aspx
WEBJia Xing, University of Tennessee [email protected]. Air Benefit and Cost and Attainment Assessment System (ABaCAS) is developed by Tsinghua University, South China University of Technology and University of Tennessee and supported by U.S. EPA. "ABaCAS-China" is partially sponsored by Energy Foundation. 粤ICP备05084312号-15.
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Abacus Definition & Meaning - Merriam-Webster
https://www.merriam-webster.com/dictionary/abacus
WEBabacus: [noun] an instrument for performing calculations by sliding counters along rods or in grooves.
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Abacus Explained — Everything You Need To Know - History Tools
https://www.historytools.org/inventions/abacus
WEBNov 8, 2023 · This marked an early step towards the abacus. China – The earliest known Chinese abacus dates back to the 2nd century BCE, based on archaeological finds. These early Chinese abacuses had 2 beads per rod. Over the following centuries, the abacus evolved into a 2:5 type with 5 beads above and 2 below the bar.
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Abacus | Definition, Examples, Understanding, Parts, Types & Uses
https://helpingwithmath.com/abacus/
WEBAbacus means Abundant Beads Addition Calculation Utility System. Abacus is a simple tool used for performing rapid arithmetic calculations. Various types of hardwoods are used to make abacus. It is, in other words, a simple calculating device that consists of beads arranged in rods of wires embedded in a wooden frame.
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Abacus | Definition, History, Origin, & Facts | Britannica
https://www.britannica.com/technology/abacus-calculating-device
WEBabacus, calculating device, probably of Babylonian origin, that was long important in commerce. It is the ancestor of the modern calculating machine and computer. The earliest “abacus” likely was a board or slab on which a Babylonian spread sand in order to trace letters for general writing purposes. The word abacus is probably derived ...
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What is Abacus? | Definition, Uses & Examples - Study.com
https://study.com/learn/lesson/abacus-overview-examples-uses.html
WEBNov 21, 2023 · It is used for counting and performing mathematical operations such as addition, subtraction, multiplication, and division. The abacus is traditionally made with a frame that holds wires or rods ...
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ABACAS
https://abacas.sourceforge.net/
WEBABACAS: Algorithm Based Automatic Contiguation of. Assembled Sequences. ABACAS is intended to rapidly contiguate (align, order, orientate), visualize and design primers to close gaps on shotgun assembled contigs based on a reference sequence. ABACAS uses MUMmer to find alignment positions and identify syntenies of assembled contigs against …
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Abacus Definition & Meaning | Britannica Dictionary
https://www.britannica.com/dictionary/abacus
WEBabacus (noun) abacus / ˈ æbəkəs/ noun. plural abacuses also abaci /-ˌsaɪ/ / ˈæbəˌsaɪ/. Britannica Dictionary definition of ABACUS. [count] : a device used for counting and calculating by sliding small balls or beads along rods or in grooves. ABACUS meaning: a device used for counting and calculating by sliding small balls or beads ...
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