C - Operator
C programming support different types of operator. The c programming can be used with variables and constants to form expressions. Operators are categorized below-
1.) Arithmetic operators
2.) Equality operators
3.) Relational operators
4.) Logical operators
5.) Unary operators
6.) Conditional operator
7.) Bitwise operators
8.) Assignment operators
9.) Comma operator
10.) Sizeof operator
Let us understand one by one.
an be applied to any integer and floating value. It is consisting of five operator, these are -:
Operation
|
Operator Symbols
|
Syntax Of Operators
|
Addition
|
+
|
a+b
|
Subtraction
|
-
|
a-b
|
Multiplication
|
*
|
a*b
|
Division
|
/
|
a/b
|
Modulus
|
%
|
a%b
|
Let us see one by one -:
suppose a=7,b=2 are declare in the program then
1.
|
calculation
|
expression
|
result
|
2.
|
addition
|
a+b
|
9
|
3.
|
subtraction
|
a-b
|
5
|
4.
|
multiplication
|
a*b
|
14
|
There are some other concept in Modulus and division-:
Let us see regarding division-:
a / b = 3
15 / 7 = 2
-15 / 7 = -2
15 / -7 = -2
-15 / -7 = 2
Notes
1.)keep in mind without symbol number taken as positive .
2.)if both side of division symbol positive then result is positive.
3.)if any one side of division symbol negative result is negative.
4.)ignore the remainder.
5.)all these four operator are application on the integer values as well as on float values.
Let us see regarding modulus-:
15 % 7 = 1
-15 % 7 = -1
15 % -7 = 1
-15 % -7 = -1
7 % 15 = 7
Notes
1.) Keep in mind modulus operator is not applicable on floating values.
2.)It is applicable on the integer values.
3.)remainder is taken in the result.
4.)sign of numerator is taken only .
5.)if first value is smaller than second than result is smaller value.
Let us see some basic concept with program example -:
Integers and float conversion
1. ) An arithmetic operation between an integer and integer always give result an integer.
2. ) An arithmetic operation between an integer and float always give result an float.
3. ) An arithmetic operation between an float and float always give result an float.
operation
|
result
|
operation
|
result
|
10/4
|
2
|
6/3
|
2
|
10.0/4
|
2.5
|
6.0/3
|
2.0
|
10/4.0
|
2.5
|
6/3.0
|
2.0
|
10.0/4.0
|
2.5
|
6.0/3.0
|
2.0
|
1.) #include<stdio.h>
int main()
{
int a;
a=5/2.0;
printf("%d",a);
return 0;
return 0;
2.) #include<stdio.h>
int main()
{
float a ;
a=5/2.0;
a=5/2.0;
printf("%f",a);
return 0;
return 0;
In the above first program 5/2.0 after solving the value will be 2.5 but into the variable a
value will be assign 2 because of integer data type declaration.But in the second program 5/2.0 after solving the value will be 2.5. And into the variable a value will be assign 2.5 because float data type declaration.
1.) #include<stdio.h>
int main()
{
int a,b,c;
a=4;
b=6;
c=a+b;
printf("%d",c);
return 0;
return 0;
2.) #include<stdio.h>
int main()
{
int a,b,c;
a=4;
b=6;
a+b=c;
printf("%d",c);
return 0;
return 0;
In first program c=a+b; is correct way to store sum of a and but in the second program a+b=c
is not a correct way to write sum of two numbers. Keep in mind:-
1. ) (/,%,*) having same priority nut more than (-,+) and associativity left to right.
2. ) (-,+) having same priority but less than (/,%,* ) and associativity left to right .
Let us see another some condition
1. ) a=6*2/5;
In this case question will solve left to right because all these arithmetic symbol (%,/,*) having same priority but associativity left to right.
2. ) z =a*b+c/d;
In this case (+) having less priority than (/,*) so firstly * and / operator will solve after that (+) operator solve.,
2. ) z=a+b%c*d/e;
In this example (%,*,/) having more priority than (+) so solve firstly. It (%,*,/) will solve left
to right because of same associativity example program-:
#include<stdio.h>
int main()
{
int a,b,c,d,e,z;
a=4;
b=6;
b=6;
c=9;
d=7;
e=5;
z=a+b%c*d/e;
printf("%d",z);
return 0;
return 0;
}
With following above rules give answer of given question
Find the value of x in each questions :
1. ) x=6%(-5);
2. ) x=8%6*5/4;
3. ) x=8%5%2*10+2;
4. ) x=8+4-7*5%1;
5. ) x=9%6+3*4/2;
6.) #include<stdio.h>
int main()
{
float x;
x=5/2;
printf("%f",x);
return 0;
return 0;
}
4 Comments
1=2
ReplyDelete2=2.5000
1=10
2=error
1=1
2=2
3=12
4=12
5=9
6=2.5000
Awsm notes for beginners
ReplyDeletebe continue for more
DeleteGreat Concept
ReplyDeleteAny query comment in comment box thank you
Emoji