IELTS-Subject-数学

• error n.错误，过失，误差(mistake)
• accuracy n.精确性，正确度
• angle n.角；角度
• formula n.角度；角落
  Formula refers to a statement, especially an equation, of a fact, rule, principle, or other logical relation.
• function n.函数
  In x=5y, x is a function of y.
• addition n.加法
• divide vt.分割；除
  The woman's estate was dicvided among her children.
• multiply v.乘；增加
• subtract vt.减去(deduct)
  If you subtract 2 from 6, you get 4.
• adjacent adj.邻近的(neighboring);接近的
• algebra n.代数学
• arithmetic n.算术
  Arithmetic as a basic school subject should be fun for starters.
• equation n.等式；平衡
  1+2=3 is a simple equation.
• altitude n.高度
  At high altitudes of Tibet it is difficult the breathe.
• geometry n.几何学
• circumference n.圆周
  The formulas for caculating the circumference of circle and triangle are different.
• slope n.斜坡；斜面；斜率
• summation n.总和，和；合计
• symmetry n.对称（性）；匀称(balance, harmony)
  The idea of symmetry is wildly used in architecture and designing.
• approximate adj.近似的，大约的(roughly)
  The approximate number of demonstrators in front of the municipal office building was 900.
• sequence n. 序列(procession, progressionN)
• progression n.行进；级别
• ascending adj.上升的，向上的
• probability n.概率；可能性
  Probability denotes a number expressing the likelihood that a specific event will occur, expresed as the ratio of the number of actual occurrences to the number of possible occurrences.
• calculation n.计算；考虑
• classification n.分类，分级
• combination n.组合
  In mathematical terms, combination means one or more elements selected from a set without regard to the order of selection.
• logarithm n.对数
• complementary adj.补充的，补足的
  The two angles are complementary agles.
• square n.正方形；平方
• congruent adj.全等的
  They are congruent triangles.
• constant n.常数，恒量
  Constant refers to a quantity assumed to have a fixed value in a specified mathematical context.
• coordinate n.同等者；同等物；坐标（用复数）
  The coordinate should show you your position.
• cylinder n.圆柱体(column);柱面
• denominator n.分母
• deviation n.离差
• dimension n.尺寸，尺度；维（数），度（数）；元（measurement）
  A line has one dimension and a square has two.
• evaluate vt.评价，估计(estimate, assess);求～值
• hemisphere n.半球
• horizontal adj.地平线的，水平的
• byperbola n.双曲线
• intersect vi.相交（cross, meat）
  These two lines intersect at the original point.
• invariance n.不变性，恒定性
• increment n.增加；增量
• maximize vt.取-最大值；最佳化
• negative n.否定；负数(minus)
• numerator n.分子(dividend)
• pentagon n.五角形，五边形
• perimeter n.周长，周界(circumference)
• permutation n.排列；置换
  Permutation is an ordered arrangement of the elements of a set.
• quadrant n.象限；四分仪
• quotient n.商
  A quotient is the number obtained by dividing one quantity by another.
• fraction n.分数
• decimal adj.十进制的 n.小数
  The metric system is a decimal system.
• diameter n.直径
• ellipse n.椭圆，椭圆形
• radius n.半径
  A line segment that joins the center of a circle with any point on its circumference is a radius.
• vertical adj.垂直的(perpendicular, upright)
  Vertical communication happens between subordinates and superiors.
• deduction n.减
• statistics n.统计学；统计表
• even adj.偶数的
  2,4,6,8 etc. are even numbers.
• odd adj.奇数的，单数的
  1,3,5,7 etc. are odd numbers.
• enumerate vt.枚举；计数(count, numberate)
  Sam can enumerate all the Presidents of the United States.
• calculate vt.计算（count），估计；计划
  Children calcute with the help of their fingers when they are learing counting.
• clalculus n.微积分学
• percentage n.百分数，百分率，百分比
  The percentage of unskilled workers is small.
• proportion n.比例；均衡；面积；部分
  We do not always find visible happiness in proportion t visible virtune.
• exponent n.指数(index)
• derivative n.导数
  The limiting value of the ratio of the change in a function to the corresponding change in its independent variabvle is called derivative.
• power n.乘方；幂
• arc n.弧，弓，拱
• infinity n.无限，无穷大