injective function
An injective function (a.k.a one-to-one function) is a function for which every element of the range of the function corresponds to exactly one element of the ... ,In mathematics, a injective function is a function f : A → B with the following property. For every element b in the codomain B there is maximum one element a in ... ,In mathematics, an injective function (also known as injection, or one-to-one function) is a function that maps distinct elements of its domain to distinct elements of its codomain. In other words, every element of the function's codomain is the image,A function is injective (one-to-one) if each possible element of the codomain is mapped to by at most one argument. Equivalently, a function is injective if it maps ... ,It CAN (possibly) have a B with many A. For example sine, cosine, etc are like that. Perfectly valid functions. But an "Injective Function" is stricter, and looks like this:. ,在數學裡，單射函數（或稱嵌射函數、一對一函數，英文稱injection、injective function或one-to-one function）為一函數，其將不同的輸入值對應到不同的函數值上。
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 injective function 相關參考資料
What is the exact definition of an Injective Function ...
An injective function (a.k.a one-to-one function) is a function for which every element of the range of the function corresponds to exactly one element of the ... https://math.stackexchange.com Injective function - Simple English Wikipedia, the free ...
In mathematics, a injective function is a function f : A → B with the following property. For every element b in the codomain B there is maximum one element a in ... https://simple.wikipedia.org Injective function - Wikipedia
In mathematics, an injective function (also known as injection, or one-to-one function) is a function that maps distinct elements of its domain to distinct elements of its codomain. In other words, ev... https://en.wikipedia.org Bijection, injection and surjection - Wikipedia
A function is injective (one-to-one) if each possible element of the codomain is mapped to by at most one argument. Equivalently, a function is injective if it maps ... https://en.wikipedia.org Injective, Surjective and Bijective - Math is Fun
It CAN (possibly) have a B with many A. For example sine, cosine, etc are like that. Perfectly valid functions. But an "Injective Function" is stricter, and looks like this:. https://www.mathsisfun.com 单射- 维基百科，自由的百科全书
在數學裡，單射函數（或稱嵌射函數、一對一函數，英文稱injection、injective function或one-to-one function）為一函數，其將不同的輸入值對應到不同的函數值上。 https://zh.wikipedia.org |