MATH & GEOMETRY Vocabulary and Terminology in English

1 calculus

$n！$

• n factorial

2 algebra

addition

$1+1=2$

• 1 plus 1 equals 2
• 2 is the sum
• (the sum of ) 1 and 1 is 2

subtraction

$10-5=5$

• 10 minus 5 equals 5
• 5 is the difference
• take 5 away from 10, you are left with 5
• take 5 away from 10, you get 5
• 10 subtract/deduct 5 gives you 5

multiplication

$5\ast 5=25$

• 5 times 5 equals 25
• 25 is the product
• 5 multiplied by 5 is 25

division

$9/3=3$

• 9 divided by 3 equals 3
• 3 is the quotient
• 3 goes into 9 3 times

$10/4=2$ remainder 2

• 10 divided by 4 equals 2 remainder 2 （2 R 2）

fraction

$\frac{3}{4}$

• 3 is numerator
• 4 is denominator

$\frac{5}{12}$

• five twelfths

$\frac{5}{6}$

• five sixths

decimal

$0.5$

• zero point five

$0.33$

• zero point three three

$0.5$ seconds

• point 5 seconds

$0.1$ seconds

• a tenth of a second

exponent

$x^2$

• x is base
• 2 is power
• x squared

$x^3$

• x cubed

$x^4$

• x to the fourth power
• x to the power of 4

$3^2=9$

• 3 squared equals 9

$x^{-N}$

• x to the minus N

$\sqrt{9}=3$

• the square root of 9 is 3

others

average and mean

• 都有平均的含义，但是average更多用在生活中，而mean更多用在数学中，显得更专业。

median

• 中位数，the middle number within a list

$y⩾x$

• y is larger/ greater than x or equal to x

$y⩽x$

• y is smaller/ less than x or equal to x

$\approx$

• approximately

$̸=$

• not equal

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3 geometry

rectangle and square

• length and width
• perimeter: 周长

$area=20m^2$

• area = 20 meter squared

box

• volume = 30 meter cubed
• height/ deepth 高

circle and sphere

• circumference 周长
• radius 半径
• diameter 直径
• sphere 球体

triangle

type

• isosceles 等腰三角形
• equilateral 等边三角形
• right triangle 直角三角形
• hypotenuse 直角三角形的斜边

angle

• right angle 直角
• acute angle 锐角
• obtuse angle 钝角
• reflex angle 反角
• perpendicular 正交和垂直
  A line is standing perpendicular to B line
• diagonal 对角线

坐标轴

• x axis and y axis
• 2 axes
• parallel

others

• oval 椭圆
• cone 圆锥
• pyramid 金字塔 四棱锥
• prism 棱柱

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引用

MATH & GEOMETRY Vocabulary and Terminology in English