C-Expressions

Expressions

• Expressions is a sequence of operators and operands that specifies computation of a value. An expressions may consist of single entity or some combination of such entities interconnected by one or more operators.
• All expression represents a logical connection that’s either true or false.
• Thus logical type expression actually represents numerical quantities.

In C every expression evaluates to a value i.e., every expression results in some value of a certain type that can be assigned to a variable. Some examples of expression are shown in the table given below.

A+b

3.14*r*r

a*a+2*a*b+b*b

C – EXPRESSION EXAMPLE PROGRAM :

1 2 3 4 5 6 7 8 9 10 11 12

#include<stdio.h> #include<conio.h> int main() { int a=123 , b; b=a+2; clrscr(); printf(“Value of a = %d\n”,a); printf(“Value of b =%d”,b); getch(); return 0; }

Output:

Value of a = 123 Value of b = 125