**binary
adj. 成双的(of or involving a pair or pairs);二进制的 n. 二进制数字
*divisible
adj. 可除尽的
【例】8 is divisible by 2 and 4, but not by 3.
*sequence
n. 序列
【记】sequ(跟随)+ence→一个跟着一个→序列
**circulate
v. (使)循环
【例】Open a window to allow the air to circulate.
*enumerate
vt. 列举,枚举;计数(to count; numerate)
【记】e(出)+numer(数字)+ate→按数列出→列举
【例】Sam can enumerate all the presidents of the United States.
**fraction
n. 分数
【记】fract(碎裂)+ion→碎裂的整数→分数
*diametrical
adj. 直径的;正好相反的
*semicircular
adj. 半圆的
【例】The hotel, freshly built by decree of the progressive, tourism-minded king, was semicircular in shape.
*tangential
adj. 切线的;离题的(divergent; digressive)
【反】tangential point(非要点)→gist(n. 要点)
*elliptical
adj. 椭圆的;晦涩的(ambiguous);省略的
【反】palpable(adj. 明显的)
*circuitous
adj. 迂回的(indirect; roundabout)
【记】circuit(绕圈)+ous→迂回的
【例】You could tell Mary that she was evading our question when she gave a circuitous response.
*curvature
n. 曲度;弯曲(curved form; curving)
【例】the curvature of the earth’s surface
*tangency
n. 相切(在一点上)接触
【例】Based on the analysis, determine the unicity of point of tangency and point of intersection.
*halve
vt. 把…对半分(to divide sth. into two equal parts)
【例】The latest planes have halved the time needed for crossing the Atlantic.
**vertex
n. (三角形、锥形等的)角的顶点;顶点,最高点(highest point; summit)
【例】Modeling applications usually display the geometric vertex count.
*symmetry
n. 对称(性);匀称(balance; harmony)
【记】sym(共同)+metry(测量)→两边测量结果一样→对称
*perpendicular
adj. 垂直的(exactly upright; vertical)
【记】per(每)+pend(挂)+icular→全部挂的→垂直的
*cylindrical
adj. 圆柱形的;圆柱体的
【例】His car had cylindrical glass holders attached to either door and a white leathery interior.
*parameter
n. 参量,变量(any of the established limits within which sth. must operate)
【记】para(辅助)+meter(测量)→辅助测量→参量
*axiom
n. 公理(maxim);定理
【记】ax(斧子)+iom→斧子之下出公理→公理
*aggregate
n. 合计,总计;集合体
**deduction
n. 扣除;扣除之量;推论;演绎法
**scatterplot
n. 散点图
**pictogram
n. 象形图
*vector
n.矢量(quantity that has both magnitude and direction, e.g. velocity)
*imponderable
adj. (重量等)无法衡量的
【记】im(不)+ponder(衡量)+able→无法衡量的
*discrete
adj. 不相关的;不连续的;离散的(separate)
【例】A computer can perform millions of discrete functions per second.
*determinant
n. 决定因素 adj. 决定性的(decisive)
【记】来自determine(v. 决定,下决心)
*chart
n. 航海图
【例】a naval chart