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.

Domain and range in discrete mathematics.

Domain describes all the independent values in a function. Does every function have a domain. Domain range and codomain. 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 above list of points being a relationship between certain x s and certain y s is a relation. Yes but in simpler mathematics we never notice this because the domain is assumed. 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. 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.

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. Usually it is assumed to be something like all numbers that will work. Such as computability theory though perhaps not in the introductory discrete math courses. The example given earlier in the lesson about the amount of rain each month is this kind of discrete domain.

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. 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. Discrete and continuous domains a discrete domain is a set of input values that consists of only certain numbers in an interval. All numbers from 1 to 5 2 1 0123456 sometimes the set of points that represent the solutions of an equation are.

Find the domain codomain and range. A discrete domain can have a finite set of values that will work for the x. Relations are often represented using arrow charts connecting the domain and range elements. Discrete functions are derived from sets of data which have gaps in them.

Range describes all the dependent values in a function. In the relation above the domain is 2 4 11 21 the range is is 5 31 11 3.