TAILIEUCHUNG - Hindu-Arabic Numerals, by David Eugene Smith and Louis KarpinskiofTheCharles

Chemical substances are often called 'pure' to set them apart from mixtures. A common example of a chemical substance is pure water; it has the same properties and the same ratio of hydrogen to oxygen whether it is isolated from a river or made in a laboratory. Other chemical substances commonly encountered in pure form are diamond (carbon), gold, table salt (sodium chloride) and refined sugar (sucrose). However, simple or seemingly pure substances found in nature can in fact be mixtures of chemical substances. For example, tap water may contain small amounts of dissolved sodium chloride and compounds containing iron,. | The Project Gutenberg EBook of The Hindu-Arabic Numerals by David Eugene Karpinski Smith and Louis Charles This eBook is for the use of anyone anywhere at no cost and with almost no restrictions whatsoever. You may copy it give it away or re-use it under the terms of the Project Gutenberg License included with this eBook or online at Title The Hindu-Arabic Numerals Author David Eugene Smith Louis Charles Karpinski Release Date September 14 2007 EBook 22599 Language English START OF THIS PROJECT GUTENBERG EBOOK THE HINDU-ARABIC NUMERALS Produced by David Newman Chuck Greif Keith Edkins and the Online Distributed Proofreading Team at http This file was produced from images from the Cornell University Library Historical Mathematics Monographs collection. Transcriber s Sections in Greek or note Hebrew will yield

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