SAT數(shù)學考試常用的符號有哪些.

　　SAT數(shù)學考試符號是令同學們最頭疼的事了，一不小心出錯，就會導致整個題失分，那么這些符號用英文詩怎么表示的呢？下面小編整理了SAT數(shù)學考試常用的一些符號，希望對大家有所幫助：

　　Logical Symbols A ? B means if A is true then B is also true; if A is false then nothing is said about B. → may mean the same as ? (the symbol may also indicate the domain and codomain of a function; see table of mathematical symbols).

　　Logical Symbols

　　A ? B means if A is true then B is also true; if A is false then nothing is said about B.

　　→ may mean the same as ? (the symbol may also indicate the domain and codomain of a function; see table of mathematical symbols).

　　? may mean the same as ? (the symbol may also mean superset).

　　A ? B means A is true if B is true and A is false if B is false.

　　The statement ?A is true if and only if A is false.

　　The statement A ∧ B is true if A and B are both true; else it is false.

　　The statement A ∨ B is true if A or B (or both) are true; if both are false, the statement is false.

　　? x: P(x) means P(x) is true for all x.

　　? x: P(x) means there is at least one x such that P(x) is true.

　　?! x: P(x) means there is exactly one x such that P(x) is true.

　　x ? y means y is derived from x.

　　以上就是小編為大家整理的關于SAT數(shù)學考試常用的符號大家在做數(shù)學題的時候一定要細心、仔細。不然一旦失分就得不償失了。