数学表达(英语).pdf

1 3 Translation of Specialty English 3 4 Basic Methods of Translation for Specialty English e g 数 学 表 达 数 学 表 达 1 2a half one half1 3a third one third 2 3two thirds 1 100a one hundredth 1 1000a one thousandth 1 4a one quarter fourth 32 4332 over 43 Four and two thirds 0 25Zero O naught point two five Plus positive minus negative plus or minus multiplied by times 2 43 3 Translation of Specialty English 3 4 Basic Methods of Translation for Specialty English e g 数 学 表 达 数 学 表 达 Divided by Be equal to equals Braces Round brackets parenthesis infinity Square angular brackets Because therefore Be approximately equal to approximately equals Maps intox yX plus y a b Bracket a plus b Bracket closed Less than or equal to more than or equal to 3 Translation of Specialty English 3 4 Basic Methods of Translation for Specialty English e g 数 学 表 达 数 学 表 达 X X approaches infinity a ba is identically equal to b a is of identity to b a ba is much far greater than b a ba is greater than b a bA is perpendicular to b a bA is approximately equal to b a approximately equals b a bA plus or minus b a ba equals b a is b a is equal to b a bA is not equal to ba ba is parallel to b a ba is less than b aangle a 3 Translation of Specialty English 3 4 Basic Methods of Translation for Specialty English e g 数 学 表 达 数 学 表 达 a ba varies directly as b x2x square x squared the square of x the second power of x x to second power x3x cube x cubed the cube of x the third power of x x to third power The square root of x x The cube root of x 3 x per cent Two per cent2 per mill five per mill5 x n log Log x to the base n x 10 log Log x to the base 10 common logarithm 2 3 Translation of Specialty English 3 4 Basic Methods of Translation for Specialty English e g 数 学 表 达 数 学 表 达 Log x to the base e Natural Napierian logarithm x e log Exp x Exponential function of x e to the power x xnx to the power n the nth power of x n x x to the power one over n the nth root of x sinsinecoscosinetantangent cotcotangentsecsecantcsccosecant Be congruent to or Be similar to 3 Translation of Specialty English 3 4 Basic Methods of Translation for Specialty English e g 数 学 表 达 数 学 表 达 5 6The sum of five and six five increased by six six more than five Six added to five five plus six 10 4 The difference of ten and four ten decreased by four Four less than ten four subtracted from ten 8 5 The product of eight and five Eight multiplied by five Eight times five 14 7The quotient of fourteen and seven Fourteen divided by seven 5 6 3 The product of five and six decreased by three 5 6 3The product of five and six decreased by three 3 Translation of Specialty English 3 4 Basic Methods of Translation for Specialty English e g 数 学 表 达 数 学 表 达 arcsinarc sine arccosarc cosine The summation of The product of n i i x 1 The summation of x sub i where i goes from 1 to n The product of x sub i where i goes from 1 to n n i i x 1 The absolute value of xxThe mean value of x x barx b prime b b second prime b double prime b b triple prime b Function g of xThe increment of xx g x 3 Translation of Specialty English 3 4 Basic Methods of Translation for Specialty English e g 数 学 表 达 数 学 表 达 finite increment or difference Dee x dee of x differential xdx The differential coefficient of y with respect to x the first derivative of y with respect to x dx dy the second derivative of y with respect to x 2 2 dx yd the nth derivative of y with respect to x n n dx yd the partial derivative of y with respect to x where y is a function of x and another variable or other variables x y 3 3 Translation of Specialty English 3 4 Basic Methods of Translation for Specialty English e g 数 学 表 达 数 学 表 达 Integral of Double integral of N fold integral of b