原文地址:数学公式的英语读法 来源: 李昱的日志作者:浙大往事 这些你都知道吗?以后给老外作报告的时候可千万别再"the eq ation is like this...", "the val e is like this..." 有些公式不好写,能看出来什么意思就行了. 1.logic ∃there exist ∀for all p⇒q p implies q  if p, then q p⇔q p if and only if q p is eq ivalent to q  p and q are eq ivalent 2.sets x∈a x belongs to a  x is an element (or a member) of a x∉a x does not belong to a  x is not an element (or a member) of a a⊂b a is contained in b  a is a s bset of b a⊃b a contains b  b is a s bset of a a∩b a cap b  a meet b  a intersection b a∪b a c p b  a join b  a nion b ab a min s b  the diference between a and b a×b a cross b  the cartesian prod ct of a and b 3. real n mbers x+1 x pl s one x-1 x min s one x±1 x pl s or min s one xy xy  x m ltiplied by y (x-y)(x+y) x min s y, x pl s y = the eq als sign x=5 x eq als 5  x is eq al to 5 x≠5 x (is) not eq al to 5 x≡y x is eq ivalent to (or identical with) y xy x is greater than y x≥y x is greater than or eq al to y xx is less than y x≤y x is less than or eq al to y 0zero is less than x is less than 1 0≤x≤1 zero is less than or eq al to x is less than or eq al to 1 |x| mod x  mod l s x x2 x sq ared  x (raised) to the power 2 x3 x c bed x4 x to the fo rth  x to the power 4 xn x to the nth  x to the power n x (−n) x to the (power) min s n x的平方根(sq are) root x  the sq are root of x x的三次根c be root (of) x x的四次根fo rth root (of) x x的n次根nth root (of) x (x+y)2 x pl s y all sq ared n! n factorial x^x hat x¯ x bar x˜ x tilde xi xi  x s bscript i  x s ffix i  x s b i ∑(i=1~n) ai the s m from i eq als one to n ai  the s m as i r ns from 1 to n of the ai 4. linear algebra ‖x‖the norm (or mod l s) of x oa→oa  vector oa oa¯ oa  the length of the segment oa at a transpose  the transpose of a a−1 a inverse  the inverse of a 5. f nctions f(x) fx  f of x  the f nction f of x f:s→t a f nction f from s to t x→y 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 do ble-prime x  f do ble-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 fo r x  the fo rth derivative of f with respect to x ∂f∂x1 the partial (derivative) of f with respect to x1 ∂2f∂x12 the second partial (derivative) of f with respect to x1 ∫0∞ the integral from zero to infinity limx→0the limit as x approaches zero limx→0+the limit as x approaches zero from above limx→0−the limit as x approaches zero from below logey log y to the base e  log to the base e of y  nat ral log (of) y lny log y to the base e  log to the base e of y  nat ral log (of) y ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 围脖: 浙大往事: s 人人网: story 搜狐: .com ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ [dna]新浙大往事地点:浙大玉泉南门青芝坞56号(老地方川菜馆对面小巷20米一栋三层别墅) 联系电话:0571- 店长张剑湖  白色三层小别墅,独立主题小房间;棋牌,娱乐,喝茶,品咖啡,三五小众聚会圣地!