Arithmetic Instruction in C Language

Arithmetic Instructions can be classified in three categories

• Integer Mode Arithmetic Instruction
• Real Mode Arithmetic Instruction
• Mixed Mode Arithmetic Instruction

Integer Mode Arithmetic Instruction

In Integer Mode Arithmetic Instruction all the operands are integer and result is also integer.

int  a,b,div;
a = 21;
b = 2;
div = a/b;
printf("Division = %d",div);

Output

Division = 10

In above program 21 divided by 2 and expected result will be 10.5 but both variable a and b are integers so their output is 10

Real Mode Arithmetic Instruction

In Real Mode Arithmetic Instruction all the operands are real numbers and result is also a real number.

float  a,b,div;
a = 21.0;
b = 2.0;
div = a/b;
printf("Division = %d",div);

Output

Division = 10.500000

Mixed Mode Arithmetic Instruction

In Mixed Mode Arithmetic Instruction some operands are integer and some are real numbers and result is a real number.

int  a;
float  b,div;
a = 21;
b = 2.0;
div = a/b;
printf("Division = %d",div);

Output

Division = 10.500000

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