Session 3 Modulus

Modulus Operator %
Result is always Remainder

a= 5 % 2; 1
a= 18 % 5; 3
a= 33 % 4; 1   4X8=32 rem = 1
a= -5 % 2 ; -1
a= 5 % -2 ; 1   5/-2; -2
Divident = Divisor X Quotient + Remanider
5    =     3


5/2       Quo=2  Rem=1
a=5/2; 2
a=5%2; 1

Example

Divident 5           Divident = Divisor X Quo + Rem
Divisor  2				5     =  2 X  2 + 1 = 4+1 = 5
Q        2
R        1
%%%%%%%%%%%
a= 5 / -2 ; -2       Divident = Divisor X Quo + Rem
a= 5 % -2 ;  -1 X  1         5   = -2 X -2 + (-1) =  4 + (-1)= 3
%%%%%%%%%%%
Rule for Modulus
1. Result is always Remainder
2. Result Sign is always same as numerator.
3. Result sign does not depend on sign of Denominator.
4. Mod (%) operator does not apply on float value.
C Lang
+/+ => +   + % + => +
+/- => -   + % - => +
-/+ => -   - % + => -
-/- => +   - % - => -

%%%%%%%%%%%
a=5.0 / 2; 2.5  Quotient
a=5.0 % 2; 1    Remainder
Divident = Divisor X Quo + Rem
 5.0    =  2 X  2.5 + 1 = 5 + 1 = 6
%%%%%%%%%%%
a= 12 % 10; 2    num % 10 will gives unit value as it result
a= 154 %10; 4
a= 456231 %10; 1
a=-75 %10; -5
a= 20 % -10; 0
a= 24 % -10; 4

a= 8 % 10;  8      In Mod Operator, When num<Denominator   Result always numerator
a= 3 % 13; 3
a= 8 % 45; 8
a= 32 % 78; 32



Arithematic Operator
* / %
+ -
=  (Assignment Operator)

Data Type
int    %d(decimal) or %i(int) ==> Format Specifier
char   %c
float  %f

Basic C Program
void main()
{

}

Header file is Optional (#include<_____>)

Mukesh Height 150cm
School Dis    10km

C-Tokens (Unit)
Keywords
Operator
Seperator ;
Variable
Constant

void 								Tokens
        main()                  Keyword: void  1
{								operator: () () 4
     printf						Seperators: {} ; 3
     (							Identifier : main printf 2
         "Hello  World"		    constant : "Hello world" 1   Total Tokens=11
         )
         ;


}
In C program, There can be
N no of spaces, N no of Tab, N no of New Lines Between any 2 tokens


void main()
{
     printf("Hello World");
}