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funções injetoras, sobrejetoras e bijetoras

English translation: injective, surjective and bijective functions

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00:45 Apr 24, 2001
Portuguese to English translations [Non-PRO]
Tech/Engineering
Portuguese term or phrase: funções injetoras, sobrejetoras e bijetoras
technical words of mathematics
Fernanda Silva Mendes
English translation:injective, surjective and bijective functions
Explanation:

função injetora = injective function, or one-one function
função sobrejetora = surjector function, or onto function
função bijetora = bijective function, or one-one onto function

Ao invés de function freqüentemente se usa mapping.

segundo o site www.pinkmonkey.com:

Types of Functions

One - One ( 1 - 1 ) Function

A function f : A ® B is one-one if different elements of A have different images in B. It is also called 'injection'.

Many - One function


A function f : A ® B is many - one if two or more elements of A have the same in B.

For example f ( x ) = x2, x Î { 1, -1, -2, 2 }.

Onto function ( Surjection )


A function f : A ® B is called an onto function if every element of B is an of some element of A i.e. the codomain = range.

(a) One-one onto :One-one onto also known as
(Bijection )bijective mapping or bijective;function.

O site http://www.math.fsu.edu/~aluffi/MGF3301/outline.html apresenta o uso que escolhi para a resposta.
Selected response from:

Michael Duncan
Brazil
Local time: 22:03
Grading comment
Thank you very, very much for the help.
If you wouldn't have replied, I would be in troubles!
Many regards,
FSM
4 KudoZ points were awarded for this answer

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Summary of answers provided
nainjective, surjective and bijective functionsMichael Duncan


  

Answers


3 hrs
injective, surjective and bijective functions


Explanation:

função injetora = injective function, or one-one function
função sobrejetora = surjector function, or onto function
função bijetora = bijective function, or one-one onto function

Ao invés de function freqüentemente se usa mapping.

segundo o site www.pinkmonkey.com:

Types of Functions

One - One ( 1 - 1 ) Function

A function f : A ® B is one-one if different elements of A have different images in B. It is also called 'injection'.

Many - One function


A function f : A ® B is many - one if two or more elements of A have the same in B.

For example f ( x ) = x2, x Î { 1, -1, -2, 2 }.

Onto function ( Surjection )


A function f : A ® B is called an onto function if every element of B is an of some element of A i.e. the codomain = range.

(a) One-one onto :One-one onto also known as
(Bijection )bijective mapping or bijective;function.

O site http://www.math.fsu.edu/~aluffi/MGF3301/outline.html apresenta o uso que escolhi para a resposta.


    www.pinkmonkey.com (requer senha)
    Reference: http://www.math.fsu.edu/~aluffi/MGF3301/outline.html
Michael Duncan
Brazil
Local time: 22:03
Grading comment
Thank you very, very much for the help.
If you wouldn't have replied, I would be in troubles!
Many regards,
FSM
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