Python- operators(recap)

Python Operator

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Good Morning Boys.

Lets take a quick recap of the topic covered on the last working day. 

I hope that during the zoom class, all your doubts are answered. 
There are some of you who haven't joined the zoom class so far. Please join from today else you may not feel comfortable with the concepts of programming, as they are new to you.
Python Operators

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) −

Are we clear about the difference between

• Normal division and floor division
• Division using / or // and the modulus (%) operator

Let us focus on the following example

 ( Note the output.We had covered these examples in the last class also. If you don't 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

I shall wait so that you can share your doubts.
 Once I receive 👍 from all, I shall proceed.

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Please note 
That we have a double period today during the 5th and the 6th period.  At that time, I shall first cover another set of operators first and then switch to the zoom call from 11am - 11:40am. The invite for the same is as follows:

Geeta Sehgal is inviting you to a scheduled Zoom meeting.

Topic: Geeta Sehgal's Zoom Meeting
Time: Apr 1, 2020 11:00 AM Mumbai, Kolkata, New Delhi

Join Zoom Meeting
https://us04web.zoom.us/j/697204189?pwd=UERDWmdjVjVjWTU0dzlPUUJkbDNUUT09

Meeting ID: 697 204 189
Password: 076230