Domain And Range In Discrete Mathematics

Domain describes all the independent values in a function.

Domain and range in discrete mathematics.

If someone could explain this question in detail so i can do some revision on it i d be grateful. Endgroup hmakholm left over monica nov 14 13 at 19 58. The domain of a function is all the possible input values for which the function is defined and the range is all possible output values. As such they are described by sets of ordered pairs x y the domain and range of these functions are described in brackets with each individual value listed.

In the relation above the domain is 2 4 11 21 the range is is 5 31 11 3. Even though they are represented differently the above are the same function and the domain of the function is x 2 3 5 6 8 and the range is y 4 8 2 9 3 this is how you can defined the domain and range for discrete functions. The domain is all the x values and the range is all the y values to give the domain and the range i just list the values without duplication. The example given earlier in the lesson about the amount of rain each month is this kind of discrete domain.

Relations are often represented using arrow charts connecting the domain and range elements. A discrete domain can have a finite set of values that will work for the x. Usually it is assumed to be something like all numbers that will work. Range describes all the dependent values in a function.

Does every function have a domain. Find the domain codomain and range. All numbers from 1 to 5 2 1 0123456 sometimes the set of points that represent the solutions of an equation are. Integers from 1 to 5 2 1 0123456 a continuous domain is a set of input values that consists of all numbers in an interval.

If you are still confused you might consider posting your question on our message board or reading another website s lesson on domain and range to get another point of view. Domain range and codomain. Yes but in simpler mathematics we never notice this because the domain is assumed. The above list of points being a relationship between certain x s and certain y s is a relation.

Discrete math question about surjective injective function and domain range hot network questions maximum number of knights populating a chess board so that no knights are attacking one another. In its simplest form the domain is all the values that go into a function and the range is all the values that come out.