二、一些函数关系的读法

  　　A与B的乘积 the ___ product of A and B

　　（___中填乘积的性质，例如外积就填outer，内积就填inner)

　　 A乘以B A times B or A is multiplied by B

　　  A/B A over B B分之A的最普通读法

　　  f(x) f of x 函数f(x)

　　  exp(n) e to powers of n e的n次幂

          三、 Pronunciation of Numerals 数词的读法

　     1.Cardinals¹ and Ordinals 基数和序数

　　(1)100以内的数词

　　基数 序数

　　Roman Arabic

　　Numerals Numerals

　　罗马数字 阿拉伯数字 读法 数码 读法

　　I 1 one 1st the first

　　II 2 two 2nd the second

　　III 3 three 3rd the third

　　IV 4 four 4th the fourth

　　V 5 five 5th the fifth

　　VI 6 six 6th the sixth

　　VII 7 seven 7th the seventh

　　VIII 8 eight 8th the eighth

　　IX 9 nine 9th the ninth

　　X 10 ten 10th the tenth

　　XI 11 eleven 11th the eleventh

　　XII 12 twelve 12th the twelfth

　　XIII 13 thirteen 13th the thirteenth

　　XIV 14 fourteen 14th the fourteenth

　　XV 15 fifteen 15th the fifteenth

　　XVI 16 sixteen 16th the sixteenth

　　XVII 17 seventeen 17th the seventeenth

　　XVIII 18 eighteen 18th the eighteenth

　　XIX 19 nineteen 19th the nineteenth

　　XX 20 twenty 20th the twentieth

　　XXI 21 twenty-one 21st the twenty-first

　　XXV 25 twenty-five 25th the twenty-fifth

　　XXX 30 thirty 30th the thirtieth

　　XL 40 forty 40th the fortieth

　　L 50 fifty 50th the fiftieth

　　LX 60 sixty 60th the sixtieth

　　LXX 70 seventy 70th the seventieth

　　LXXX 80 eighty 80th the eightieth

　　XC 90 ninety 90th the ninetieth

　　IC 99 ninety-nine 99th the ninety-ninth

　　C 100 one hundred 100th the hundredth

　　CII 102 a hundred 102nd the (one) hundred

　　and two and second

　　246 two hundred and forty-six

　　751 seven hundred and fifty-one

　　(2)1000以上的数词

　　1,000 = one thousand 一千

　　10,000 = ten thousand 一万

　　100,000 = one hundred thousand 十万

　　1,000,000 = one million 一百万

　　10,000,000 = ten million 一千万

　　100,000,000=one hundred million 一亿

　　(3)十亿以上的大数，英美有不同的读法：

　　英国 美国

　　十亿 one thousand million = one billion

　　百亿 ten thousand million = ten billion

　　千亿 one hundred thousand million = one hundred billion

　　万亿 one billion = one trillion

　　2.Fractions 分数

　　通常将分子读为基数，将分母读为序数。

　　1/2 = a (or one) half

　　1/3 = a (or one) third

　　1/4 = a quarter or one fouth

　　1/5 = a (or one) fifth

　　2/3 = two thirds

　　9/10 = nine tenths

　　53/4 = five and three quarters

　　15/64= fifteen over (or by) sixty-four

　　15% = fifteen per cent

　　4‰ = four per mill

　　3.Decimals² 小数

　　0.4 = zero (or nought³) point four

　　.01 = point (or decimal) nought one

　　12.34 = twelve point three four

　　567.809 = five hundred and sixty-seven point eight nought nine

　　30.45 = thirty point four five, five recurring⁴

　　0.3% = decimal three percent   

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