The New Encyclopędia Britannica: L-ZEncyclopędia Britannica, 1992 - 32 pages |
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Page 253
... Addition has the following properties : The order of addition does not affect the result ( see Box , equation 1 ) —that is , addition is commutative . If three numbers are being added , parentheses can be placed around either the first ...
... Addition has the following properties : The order of addition does not affect the result ( see Box , equation 1 ) —that is , addition is commutative . If three numbers are being added , parentheses can be placed around either the first ...
Page 254
... addition and multiplication , such that ( 1 ) with addition as the law of combination it forms an ad- ditive group , and ( 2 ) with multiplication is commutative and associative , and distributive over addition , is called a ring . It ...
... addition and multiplication , such that ( 1 ) with addition as the law of combination it forms an ad- ditive group , and ( 2 ) with multiplication is commutative and associative , and distributive over addition , is called a ring . It ...
Page 283
... addition , subtraction , multiplication , and division subject to the usual rules ) , all complex numbers of the form x + yi = x + iy = x + y√ - 1 were considered more generally . It was decided to add and subtract these by the rules ...
... addition , subtraction , multiplication , and division subject to the usual rules ) , all complex numbers of the form x + yi = x + iy = x + y√ - 1 were considered more generally . It was decided to add and subtract these by the rules ...
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20th century Abelian group addition aesthetic Afghanistan agriculture Albania alcohol algae algebra animals basin called central centre ceremonial climate coast common complex numbers Congo contains Cōte d'Ivoire countries crops cultivation culture dance defined desert developed drinking drug East eastern economic Egypt elements equations European example farm feet field Figure finite fish forest functor Igbo important Indians integers irrigation isomorphism Kabul Kenya Lake Lake Chad Lake Victoria land language lattice Lie algebra linear major mapping miles modern mountains Niger Nigeria Nile northern operations patterns percent period Plains plants Plateau polynomial population rainfall real numbers region ring ritual River Sahara savanna social soil South Africa southern Africa species subgroup Sudan Tanzania theory tion traditional tribes tropical United valley vector space vegetation village West Africa western x₁ Yoruba Zaire Zambia Zimbabwe