SAT数学公式的英文读法.doc

SAT数学公式的英文读法 小马过河为大家准备了“SAT数学公式的英文读法”，供各位备考SAT的考生们参考使用，来提高自己的托福成绩！免费咨询电话：400-0123-267 　　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 equivalent to q / p and q are equivalent 　　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 subset of B 　　A?B A contains B / B is a subset of A 　　A∩B A cap B / A meet B / A intersection B 　　A∪B 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 　　= the equals sign 　　x=5 x equals 5 / x is equal to 5 　　x≠5 x (is) not equal to 5 　　x≡y x is equivalent to (or identical with) y 　　xy x is greater than y 　　x≥y x is greater than or equal to y 　　x≤y x is less than or equal to y 　　0≤x≤1 zero is less than or equal to x is less than or equal to 1 　　|x| mod x / modulus x 　　x2 x squared / x (raised) to the power 2 　　x3 x cubed 　　x4 x to the fourth / x to the power 4 　　xn x to the nth / x to the power n 　　x (?n) x to the (power) minus n 　　x的平方根(square) root x / the square root of x 　　x的三次根cube root (of) x 　　x的四次根fourth root (of) x 　　x的n次根nth root (of) x 　　(x+y)2 x plus y all squared 　　n! n factorial 　　x^x hat 　　xˉ x bar 　　x? x tilde 　　xi xi / x subscript i / x suffix i / x sub i 　　Σ(i=1~n) ai the sum from i equals one to n ai / the sum as i runs from 1 to n of the ai 　　4. Linear algebra 　　‖x‖the norm (or modulus) of x 　　OA→OA / vector OA 　　OAˉ OA / the length of the segment OA 　　AT A transpose / the transpose of A 　　A?1 A inverse / the inverse of A 　　5. Functions 　　f(x) fx / f of x / the function f of x 　　f:S→T a function 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)