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algebra

/ˈæl.dʒɪ.bɹə/ /ˈæl.dʒə.bɹə/

Meanings
noun

代数学，代数。

A system for computation using letters or other symbols to represent numbers, with rules for manipulating these symbols.

Examples :

"My math class is learning algebra, which uses letters like 'x' and 'y' to represent unknown quantities. "
我的数学课在学代数，代数会用像'x'和'y'这样的字母来代表未知的数量。
math number logic science education
noun

集代数, 代数.

A collection of subsets of a given set, such that this collection contains the empty set, and the collection is closed under unions and complements (and thereby also under intersections and differences).

Examples :

"The algebra of my friend group includes everyone who is a student, and also anyone who is a sibling or parent of a student. "
我的朋友圈“集代数”包括所有学生，以及所有学生的兄弟姐妹和父母。
math logic theory number

Related Words

Illustration multiplication

multiplication noun

/ˌmʌltɪplɪˈkeɪʃən/

乘法，相乘。

"In math class, we learned that multiplication is a quick way to add the same number many times. "

在数学课上，我们学到乘法是一种快速计算相同数字多次相加的方法。

Illustration intersections

intersections noun

/ˌɪntərˈsekʃənz/ /ˌɪnərˈsekʃənz/

十字路口，交叉路口.

"Traffic lights are important at busy intersections to prevent accidents. "

在繁忙的十字路口，红绿灯非常重要，可以防止交通事故。

Illustration computation

computation noun

/ˌkɑmpjəˈteɪʃən/ /ˌkɒmpjəˈteɪʃən/

计算，运算，推算

"The computation of the total cost for the family vacation involved adding up the airfare, hotel expenses, and rental car fees. "

计算这次家庭旅行的总费用，需要把机票、酒店费用和租车费加起来。

Illustration differences

differences noun

/ˈdɪfɹənsɪz/

差异，差别。

"You need to learn to be more tolerant of difference."

你需要学会更加宽容地对待差异。

Illustration dislocation

dislocation noun

/dɪsləʊˈkeɪʃən/

错位，脱位

"Example Sentence: "The earthquake caused a major dislocation of families from their homes." "

地震导致许多家庭被迫离开家园，流离失所。

Illustration quantities

quantities noun

/ˈkwɒn.tɪ.tiz/ /ˈkwɑntɪtiz/

数量，计数，额度

"You have to choose between quantity and quality."

你必须在数量和质量之间做出选择。

Illustration dislocated

dislocated verb

/ˈdɪsləˌkeɪtɪd/ /ˈdɪsˌloʊkeɪtɪd/

脱位，错位。

"During the soccer game, the player fell and dislocated his shoulder. "

在足球比赛中，那个球员摔倒了，肩膀脱臼了。

Illustration commutative

commutative adjective

/kəˈmjuːtətɪv/ /kəˈmjuːteɪtɪv/

可交换的，对易的。

"Addition and multiplication are commutative operations but subtraction and division are not."

加法和乘法是可交换的运算，也就是说，改变加数或乘数的位置不影响结果；但减法和除法就不是可交换的运算了，因为改变减数或除数的位置会影响结果。

Illustration substituting

substituting verb

/ˈsʌbstɪˌtutɪŋ/ /ˈsʌbstəˌtutɪŋ/

代替，取代。

"I had no shallots so I substituted onion."

我没有小葱，所以就用洋葱代替了。

Illustration manipulating

manipulating verb

/məˈnɪpjəˌleɪtɪŋ/ /məˈnɪpjəˌleɪɾɪŋ/

操纵，操作。

"The toddler was happily manipulating his building blocks, stacking them and knocking them down. "

那个蹒跚学步的孩子正在高兴地摆弄他的积木，把它们堆起来又推倒。

Illustration complements

complements noun

/ˈkɑmpləmənts/ /ˈkɑmplɪmənts/

补体，补血清素。

""The body's complements help fight off infections, working alongside antibodies to eliminate harmful bacteria." "

身体里的补体有助于抵抗感染，与抗体一起清除有害细菌。

Illustration mathematical

mathematical adjective

/ˌmæθəˈmætɪkəl/

数学的，算学的

"a mathematical problem"

一个数学问题