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It's the same as the purpose of a function, procedure, method, ... in other programming languages. The basic idea is that you have a certain calculation or processing that has to be repeated over and over again (perhaps with slight variations), so it is programmed in a single place, where it can be invoked from different parts of the program. For example, if you need to calculate a square root, you program this in a single place (a function); you don't repeat all the complicated calculations everywhere you need to calculate a square root. In this example, since it is a fairly common requirement, it is already programmed in most programming languages; but you can also create your own functions for more customized calculations or processing.
What else can I help you with?
What is the differnce between ordinary function and template function of c language?
The c language does not have template functions. That is a c++ thing.
Call by function in c language?
I guess you meant the following:'In C language, when you call a function,the parameters are passed by-value.'
What are the library function in c language?
libray in c++
What are the hearing rods for identifier 'c' language?
The hearing rods for identifier "c" language is the function.
What is function of brack in c language?
Nothing.
Is combination a library function in c language of programming?
No.
Why Clearscreen in c language is used?
'Clearscreen' is not used in C language. TurboC has a clrscr function (prototype in conio.h).
Can you write any c prigramme in c language witthout any function?
No. At minimum, you need to provide a main() function.
What function is used to perform exponentiation in C language?
You can use the pow() function in math.h.
Why you use 'integer' before function in C language?
To specify the return-type of the function.
What is the function of stdlibh in c language?
It contains useful declarations.
What are functions in c language?
constants, MAX_(function), etc.
