Types of Functions.
According to the nature shown by a Function it can be classified into different types. They are as following: 1> One-To-One function. A Function is said to be a One-To-One Function if every element of Domain of the function have its own and unique element in Range of the Function. A function from set A to set B is said to be a One-To-One Function if no two or more elements of set A have same same elements mapped or imaged in set B. Or no two or more elements processed through the function gives same output. For example: When...
read moreIntroduction To Functions.
What is Function? A Function from set A to set B is a Relation or a rule which associates or maps or images each and every element of set A with a element in set B. A function is a special case or Relation in which each and every element of first set (A) is related with only one element of second set(B). Denotation of function: A function from set A to set B is denoted by : f:A→B And read as “f is a function from set A to set B”. We use f,g,h and F,G,H mainly to denote a function. If we take any element of Set A and...
read moreVariable And Constant.
What is Variable? An entity which doesn’t have a fixed value instead have many values is known as a Variable. For example: Let A be a set and suppose x∈A or x is a element of set A. by x∈A , we don’t mean x is a element of set A instead we mean x is a representative for elements of set A. so , x doesn’t have a fixed value or only one value instead it have many values. Like if set A={1,2,3} then the value of x is 1 , 2 and 3. In the above example “x” is a variable in x∈A. What is constant? An...
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