常見SAT數(shù)學題符號介紹.

　　SAT數(shù)學考試是需要大家記憶專業(yè)詞匯最多的考試，當然在記憶SAT數(shù)學詞匯的同時，大家也需要關注一下SAT數(shù)學題常用的符號，這些符號用英文是如何表示的呢?我們該如何理解呢?下面我們來看看這些SAT數(shù)學題常用符號的全部內容吧。

　　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.

　　以上就是這些SAT數(shù)學題常用符號的全部內容，包括了大家在備考SAT數(shù)學考試中經常會用到的一些符號的英文表達的意思。大家可以在考前沖刺階段對這些SAT數(shù)學符號進行強化復習，加深記憶。