Topic: Injective Bijective Surjective
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What are some examples of Injection Surjection and Bijection?
Too long to explain so just go here http://en.wikipedia.org/wiki/Bijection,_injection_and_surjection Read More »
Source: http://wiki.answers.com/Q/What_are_some_examples_of_Injection_Sur...
How to tell if this function is injective, surjective or bijectiv...
Z-->N Just means that the set of all integers (denoted Z) is the domain and the set of all natural numbers (denoted N) is the codomain (range). Now the way the function is defined doesn't make much sense. In fact, in mathematics, we would s... Read More »
Source: http://answers.yahoo.com/question/index?qid=20110919062351AAbGonQ
How do you test for injective/bijective/surjective functions?
I'm no good with programming, but I can give you the formal definitions. A function f is injective if f(x)=f(y) implies that x=y. In other words, each element of the domain maps to a unique element of the codomain, no two distinct elements ... Read More »
Source: http://answers.yahoo.com/question/index?qid=20090308061350AAsMlgf
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Look in your textbook, they should have the exact definitions. ;)
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Source: http://answers.yahoo.com/question/index?qid=20080407013247AA2qf9a
A bijective function is both injective and surjective. If it's bijective then it's surjective the converse is not necessarily true (consider (x-1)(x-2)*x which is surjective but not bijective (since the roots all map to 0) ) A function f:A-...
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Source: http://answers.yahoo.com/question/index?qid=20081224095722AAJpzvt
f(x) = x - 1 , when x ≥ 2 f(x) = 1 , when x = 1 f(1) = f(2) = 1 so it is not injective. For any natural number y there exists an x in N such that f(x) = y. Namely x = y + 1. Therefore the function is onto
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Source: http://answers.yahoo.com/question/index?qid=20091102233003AALX0hO
1) surjective and injective 2) surjective 3) surjective and injective 4) injective The words surjective and injective refer to the relationships between the domain, range and codomain of a function. In order to apply this to matrices, we ha...
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Source: http://answers.yahoo.com/question/index?qid=20070208123132AAJS8ei
I gotta tell you that I've never heard these terms before, but I looked them up and found a rule that says: The function g : R → R defined by g(x) = x^n − x is not injective, since, for example, g(0) = g(1). hope this helps
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Source: http://answers.yahoo.com/question/index?qid=20081121225632AAwuYF0
These describe two different types of functions. If a function from a set to another set is what used to be called (more descriptively in my opinion) one-to-one it is called an injection. This means that no two elements of the first set hav...
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Source: http://answers.yahoo.com/question/index?qid=20090404110109AARrm4x
Injective is the easy one: If a function is injective (1-1), then you should be able to draw a horizontal line anywhere you want on the graph and intersect the graph ONCE and only once [if one horizontal line hits the graph two or more time...
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Source: http://answers.yahoo.com/question/index?qid=20090830015148AA5jjK5
