| 单词 | algebra |
| 释义 | algebra (once / 2638 pages) n If the math equation you're doing has letters or other symbols that stand for numbers, you're likely doing algebra. You probably took your first algebra class early in your high school years. The noun algebra comes from Arabic word al jebr, meaning "reunion of broken parts," which appeared in the title of mathematician al-Khwarizmi's famous book on equations. In algebra you use basic arithmetic like addition and subtraction, but the quantities you're working with are often unknown — that's why they're represented by letters. You might remember solving algebra equations that look like this: a(b + c) = ab + ac. The letters a, b, and c all represent a number. WORD FAMILYalgebra: algebraic, algebraical, algebraist, algebras+/algebraic: algebraically/algebraist: algebraists USAGE EXAMPLESChrist taught algebra to juniors and seniors at South Plainfield High School for two years. Washington Times(Dec 28, 2016) It’s complex, involves a lot of formal logic and algebra, and is mostly useless. Slate(Dec 16, 2016) In high schools, intermediate algebra is often part of courses called “algebra 2.” Seattle Times(Dec 07, 2016) n the mathematics of generalized arithmetical operations Hypo|Hyper quadratics a branch of algebra dealing with quadratic equations linear algebrathe part of algebra that deals with the theory of linear equations and linear transformation vector algebrathe part of algebra that deals with the theory of vectors and vector spaces matrix algebrathe part of algebra that deals with the theory of matrices decomposition, vector decompositionthe analysis of a vector field pure mathematics the branches of mathematics that study and develop the principles of mathematics for their own sake rather than for their immediate usefulness |
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