以 b 开头的数学词汇 | 玄数 | Page 2

2012-10-05
Binomial Theorem 二项式定理
Give an expansion like (a + b)n
(a + b)2 = a2 + 2ab + b2

(a + b)3 = a3 + 3a2b + 3ab2 + b3

(a + b)4 = a4 + 4a3b + 6a2b2 + 6ab3 + b4
binomial theorem

bisect   平分,把…二等分
To divide sth into two equal parts.

bisector   平分线
A line or plane that bisects an angle or line segment.
bisector

bivariate   二元的
Having two variables.

bond   键;债券
An agreement by a government or a company to pay you interest on the money you have lent.

bound, boundary   边界,界限;线

  • A real or imagined line that marks the limits or edges of sth and separates it from other things or places.
  • boundary

  • The collection of all points of a given set having the property that every neighborhood of each point contains points in the set and in the complement of the set.

brackets   方括号
[ ]

breadth   宽
The measure or dimension from side to side; width.