Write a C program that calculate the volume of a cylindrical tank. You program should include two functions: One for the area of a circle that will be called for the volume function. A function for calculating the volume. This function should be called from the main function.

A function is a program segment that carries out some specific, well defined task. A function is a self contained block of code that performs a particular task. 4.1 Types of functions C functions can be classified into two types, 1. Library functions /pre defined functions /standard functions /built in …

C - Functions A function is a group of statements that together perform a task. Every C program has at least one function, which is main(), and all the most trivial programs can define additional functions. You can divide up your code into separate functions. How you divide up

Types of C Functions •Library function •User defined function Library function •Library functions are the in-built function in C programming system For example: main() - -The execution of every C program printf() - prinf() is used for displaying output in C. scanf() - scanf() is used for taking input in C. 7 Department of CSE

Function •A program segment that carries out some specific, well-defined task. • Example •A function to add two numbers •A function to find the largest of n numbers • A function will carry out its intended task whenever it is called or invoked •Can be called multiple times • Every C program consists of one or more functions.

Each function is essentially a small program, with its own declarations and statements. Some advantages of functions: The Caesar Cipher example discussed earlier provides an illustration of the use of functions in the design and implementation of a small C program.

In this lesson we will cover the creation and utilization of such user-defined functions. The use of user-defined functions allows a large program to be broken down into a number of smaller, self-contained components, each of which has some unique, identifiable purpose.

C Programming Functions Functions in C Function with a Return Value Problem: convert a decimal number n to its binary equivalent n b. Partition n into sum of powers of 2, eg., 67 = 26+21 + 20. Binary equivalent of 67 will have 1’s in 5th, 1st and 0th bit positions. set r=0 read n n != 0 ? n%2 != 0? return r no yes yes no set s=1 n = n/2 s = s ...

C Functions In this lecture • C functions • Command line arguments • Function prototypes • Recursive Functions • Runtime Stack • Reference versus Value arguments • Passing and returning values to/from functions • Exercises Each unit in a C program is a function. The entry point to a C program is the main program.

This document provides an overview of functions in C programming, explaining their importance, structure, and usage. It covers topics such as return values, parameters, variable scope, and predefined functions, along with practical coding examples.