Discrete Math Function problem

In summary, the conversation is about understanding onto, one-to-one, and bijection functions. The person is asking for help with a sample problem involving f(x) = 2x, and wants to know if it is onto, one-to-one, or bijection. They also ask for the definitions of these functions to better understand them.
  • #1
raross
12
0
Hey if anyone could help me with this I would be sooo grateful. I am trying to grasp the idea of onto, one-to-one and bijection(both) functions.

A sample problem is: If f(x) = 2x . What is f(Z), all integers. What is f(N), all naturals. What is f(R), all real. These are 3 different problems, and I am trying to figure out if they are onto, and/or one-to-one or bijection(which means both).

Any help would be a BIG HELP! Thanks!
 
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  • #2
anyone?

anyone? Thanks
 
  • #3
... =/
 
  • #4
What is it you don't understand about one-to-one and onto functions?
 
  • #5
Yeah, definitions are always the most important thing here. Type them up here and think about them for a bit and then we'll see what you're having trouble with.
 

Related to Discrete Math Function problem

What is Discrete Math Function problem?

Discrete Math Function problem is a branch of mathematics that deals with the study of discrete mathematical structures, such as graphs, trees, and networks. It involves the use of mathematical principles and techniques to analyze and solve problems in these structures.

What are some examples of Discrete Math Function problems?

Some examples of Discrete Math Function problems include finding the shortest path in a network, determining the optimal routing of data packets in a computer network, and analyzing the stability of a system using difference equations.

What are the key concepts in Discrete Math Function problem?

The key concepts in Discrete Math Function problem include sets, functions, relations, combinatorics, graph theory, and algorithms. These concepts are used to represent, manipulate, and analyze discrete structures and solve problems related to them.

How is Discrete Math Function problem used in real-world applications?

Discrete Math Function problem has numerous real-world applications, such as in computer science, engineering, economics, and social sciences. It is used to model and analyze complex systems and networks, optimize processes and algorithms, and make predictions and decisions based on data.

What skills are required to excel in Discrete Math Function problem?

To excel in Discrete Math Function problem, one needs to have a strong foundation in mathematical concepts, critical thinking, problem-solving skills, and the ability to think abstractly. Familiarity with computer programming and data analysis is also beneficial.

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