1.15 Operators and expressions

Operators and expressions:

Arithmetic Operators:

Addition +, Add two operands

 Substraction -, Subtract two operands

 Multiplication *, multiply two operands

Division /, divide two operands

floor division //, Divide and round off

Modulo division % , divide and give reminder as output

Program:

x=11

y=5

addition = x+y

substraction = x-y

multiplication=x*y

division= x/y

floordivision=x//y

modulodiv=x%y

print('x=',x,'y=',y)

print('addition=',addition)

print('substraction=',substraction)

print('multiplication',multiplication)

print('division',division)

print('floordivision',floordivision)

print('modulodiv',modulodiv)

Output:

x= 11 y= 5                                                                                                                       

addition= 16                                                                                                                     

substraction= 6                                                                                                                  

multiplication 55                                                                                                                

division 2.2                                                                                                                     

floordivision 2                                                                                                                  

modulodiv 1      

Logical Operators:

Logical AND, true if both operands are true else false.  x and y

Logical OR, true if any one of the operands is true else false.  x or y

Logical NOT, true if operand is false. not x

Relational Operators:

Greater Than >

Less Than <

Equal to ==

Not Equal to !=

Greater than equal >=

Less than equal <=

Expressions in Python

Expressions are representations of value. They are different from statement in the fact that statements do something while expressions are representation of value. For example, any string is also an expression since it represents the value of the string as well.