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1.Logic there exist for all pq p implies q / if p, then q pq p if and only if q /p is equivalent to q / p and q are equivalent 2.SetsxA x belongs to A / x is an element (or a member) of A xA x does not belong to A / x is not an element (or a member) of A AB A is contained in B / A is a subset of B AB A contains B / B is a subset of A AB A cap B / A meet B / A intersection B AB A cup B / A join B / A union B A\B A minus B / the diference between A and B A×B A cross B / the cartesian product of A and B 3. Real numbers x+1 x plus one x-1 x minus one x±1 x plus or minus one xy xy / x multiplied by y (x - y)(x + y) x minus y, x plus y x y x over y = the equals sign x = 5 x equals 5 / x is equal to 5 x5 x (is) not equal to 5 xy x is equivalent to (or identical with) y x y x is not equivalent to (or identical with) y x > y x is greater than y xy x is greater than or equal to y x < y x is less than y xy x is less than or equal to y 0 < x < 1 zero is less than x is less than 1 0x1 zero is less than or equal to x is less than or equal to 1 | x | mod x / modulus x x 2 x squared / x (raised) to the power 2 x 3 x cubed x 4 x to the fourth / x to the power four x n x to the nth / x to the power n x n x to the (power) minus n x (square) root x / the square root of x x 3 cube root (of) x x 4 fourth root (of) x x n nth root (of) x ( x+y ) 2 x plus y all squared ( x y ) 2 x over y all squared n! n factorial x ^ x hat x ¯ x bar x ˜ x tilde x i xi / x subscript i / x suffix i / x sub i i=1 n a i the sum from i equals one to n a i / the sum as i runs from 1 to n of the a i 4. Linear algebra x the norm (or modulus) of x OA OA / vector OA OA ¯ OA / the length of the segment OA A T A transpose / the transpose of A A 1 A inverse / the inverse of A 5. Functionsf( x ) fx / f of x / the function f of x f:ST a function f from S to T xy x maps to y / x is sent (or mapped) to y f'( x ) f prime x / f dash x / the (first) derivative of f with respect to x f''( x ) f double-prime x / f double-dash x / the second derivative of f with respect to x f'''( x ) triple-prime x / f triple-dash x / the third derivative of f with respect to x f (4) ( x ) f four x / the fourth derivative of f with respect to x f x 1 the partial (derivative) of f with respect to x1 2 f x 1 2 the second partial (derivative) of f with respect to x1 0 the integral from zero to infinity lim x0 the limit as x approaches zero lim x 0 + the limit as x approaches zero from above lim x 0 the limit as x approaches zero from below log e y log y to the base e / log to the base e of y / natural log (of) y lny log y to the base e / log to the base e of y / natural log (of) y实践证明经常访问无忧英语教育网 www.51education.net ,能迅速提高你的英语学习能力!积沙成塔,不断提高! 本站所提供的所有信息仅供学校课堂教学及英语学习者学习研究之用,其著作权归原作者及媒体所有。

数学公式的英语读法          【字体:
 

数学公式的英语读法

作者:佚名    文章来源:不详    点击数:    更新时间:2006-8-6     


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