sat数学 公式总结
2013-07-17 15:12 供稿单位: 新航道
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SAT数学考试并不需要考生记忆数学公式，对于一些常用的简单公式都会列在试卷的前面。但是对于一些可以帮助大家解题的小公式，大家还是了解记忆一些比较有好处。下面为大家搜集了这样的SAT数学公式，供大家参考。
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
x>y 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) 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/?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 / natural log (of) y
lny log y to the base e / log to the base e of y / natural log (of) y
以上就是新航道小编为大家整理的sat数学 公式总结的详细内容，希望对大家有所帮助，更多资讯、资料请访问新航道sat频道https://www.xhd.cn/sat/
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