数学符号的英语表达VIP免费

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 x/y x over 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 x≡/y（x 不等于y) x is not equivalent to (or identical with) y x > y x is greater than y x≣y x is greater than or equal to y x < y x is less than y x≢y x is less than or equal to y 0 < x < 1 zero is less than x is less than 1 0≢x≢1 zero is less than or equal to x is less than or equal to 1 | x | mod x / modulus x x 2 (x 的平方） 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 的（算术）平方根 (square) root x / the square root of x x 的立方根 cube root (of) x x 的 4 次方根 fourth root (of) x x 的 n 次方根 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 / ...