专业英语-希腊字母.ppt

单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,*,数学专业英语,MATHEMATICAL ENGLISH,参考书目：数学专业英语,吴炯圻 编著，高等教育出版社,1,数学符号的读法,1、希腊字母的读法与写法,2,3,4,5,20,o,twenty degrees,6 six minutes;six feet,10”ten seconds;ten inches,2%two percent,5,five per mille,8,3.符号与表达式,a,b a plus b;(positive),ab a minus b;(negative),ab a plus or minus b,ab a multiplied by b;(times),ab a divided by b;,a:b the ratio of a to b,9,a=b a is equal to b;a equals to b,ab a is not equal to b;a is not b,ab a is greater than b,ab a is less than b,ab a is greater than or equal to b,ab a is less than or equal to b,ab a is identically equal to b;a is of,identity to b,10,a is approximately equal to b,a is congruent to b,a to the power p,square root of a,cube root of a,n th root of a,the absolute value of a,factorial n,11,exponential function(to the base e)of x,logarithm to the base a of x,the integral part of x,real part of z,imaginary part of z,modulus of z,argument of z,conjugate of z,12,function f of x,y is a function of x,increment of x;delta x,total differential of the function f,derivative of the function f with,respect to x,value at a of the derivative of the,function f,13,n th derivative of the function f with respect to x,partial derivative of the function f with respect to x,where f is a function of x and another variable(or variables),an indefinite integral of the function f,definite integral of the function f from a to b,x approaches the limit a,14,b prime,b double prime,b triple prime,b sub m,x dot,x two dots,15,because;since,therefore,for all;for every,there is a;there exists,round brackets;parentheses,square brackets,braces,16,p implies q,p is equivalent to q;p if and only if q,x is(not)a member of the set X,set A is(not)contained in set X,union of sets X and Y,intersection of sets X and Y,differences of sets X and Y,17,练习,65=30,Six times five equals thirty;,Six multiplied by five is equal to thirty;,Six multiplied by five makes/make thirty,18,v equals s divided by t;,v is s over t,19,127+3,twelve is greater than seven plus three,20,5,2,=25,The second power of 5 is 25;,5 square is 25;,The square of 5 is 25;,5 to the second power is equal to 25,21,The square root of 4 is/equals plus or minus 2,22,a plus b minus c multiplied by d,all,divided by e equals f,23,456723=198余13,Twenty-three into four thousand five hundred and sixty-seven goes one hundred and ninety-eight times,and thirteen remainder.,24,