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Expressions and its uses in #C program (module 11)

In this section we will discuss on the different expressions in C and there uses in functions and in any C program

This is the 11th module on learning C with us. Earlier we discussed on the basic introduction and structure of C, preprocessor it's features, intermediate and executable codes. compilation and execution process of a C program. And keywords and identifiers, data types, variables and constants, scope of variables, operators in C.
In this section we will discuss on the different expressions in C and there uses in functions and in any C program.
Expressions in #C :-
An expression is a sequence of operators and operands that reduces to a single value. Expressions can be simple or complex. A operator is a syntactical token that requires an action be taken. An operand is an object on which an operation is performed.
A simple expression contains only one operator. Eg. 2+3 is a simple expression whose value is 5.

Arithmetic expressions is a combinations of variables,  constants,  & operators arranged according to the syntax of C language.
Some example :
                              A*B-C
                              (M+N)*(X+Y)
Expressions are evaluated using an assignment statement of the form
                             Variable = expression
The precedence or priorities of operator are as follows: 
High  *   ,   /  ,   %
Low   +   ,   -
An expression is evaluated in left to right & value is assigned to variable in left side of assignment operators.
int main()  
{ float a=9,b=23,c=3,x,y,z; 
   x = a-b/3+c*2-1;   
 y = a-b/(3+c)*(2-1);  
 z = a-(b/(3+c)*2)-1;   
printf("valurs of x y z are %d %d %d"x,y,z); 
 } 
In next module we will continue on the next module on type of conversion in C i.e module 12. For more information please be updated with us as we provide all the modules and cover all the topics regarding #C. Only on Www.newsandstory.com
Expressions
types
module 11
#C
Programming
coding
learning
Dalpat I
Content writer
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