Python- Operators-6(a)

Python Operator

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Good Morning Boys.
Lets take a look at  the topic of the day "Python Operators"

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By the end of this session, you will be able to:

• Identify the various operators available in Python
• understand and apply the various arithmetic operators in Python.
• Understand the working of the arithmetic operators (after the discussion on the ZOOM class)

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Operators are used to perform operations on variables and values.

Python divides the operators in the following groups:

• Arithmetic operators
• Assignment operators
• Comparison operators
• Logical operators
• Identity operators*
• Membership operators*
• Bitwise operators*

*- These operators will be covered at a later stage when the related concepts are dealt.

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Python Arithmetic Operators

Arithmetic operators are used with numeric values to perform common mathematical operations. Assume variable a holds 10 and variable b holds 20, then −

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Operator	Description	Example
+ Addition	Adds values on either side of the operator.	a + b = 30
- Subtraction	Subtracts right hand operand from left hand operand.	a – b = -10
* Multiplication	Multiplies values on either side of the operator	a * b = 200
/ Division	Divides left hand operand by right hand operand	b / a = 2
% Modulus	Divides left hand operand by right hand operand and returns remainder	b % a = 0
** Exponent	Performs exponential (power) calculation on operators	a**b =10 to the power 20
//	Floor Division - The division of operands where the result is the quotient in which the digits after the decimal point are removed. But if one of the operands is negative, the result is floored, i.e., rounded away from zero (towards negative infinity) −

Let us focus on the following example ( Note the output. If you dont understand, share your doubts in the comment section.)

Example #1: Arithmetic operators in Python

x = 15
y = 4

# Output: x + y = 19
print('x + y =',x+y)

# Output: x - y = 11
print('x - y =',x-y)

# Output: x * y = 60
print('x * y =',x*y)

# Output: x / y = 3.75
print('x / y =',x/y)

# Output: x // y = 3
print('x // y =',x//y)

# Output: x ** y = 50625
print('x ** y =',x**y)

When you run the program, the output will be:

x + y = 19
x - y = 11
x * y = 60
x / y = 3.75
x // y = 3
x ** y = 50625