Python Tutorials - Bitwise Operators 2 (Complement, Left Shift, Right Shift)

In this Python Programming video tutorial you will learn about bitwise operators in detail.
Bitwise operators works on the bits.
There are 6 operators and in this tutorial we will discuss bitwise complement bitwise left shift and bitwise right shift operators in detail with example.
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[@azharashraf3143]

General formula for getting result of right and left shifts are:- By using common sense, if we shift the value in the left direction our value increases, and shifting bits in the right direction value decreases. For Left shift(>>):-xy=x//(2**y)[Floor division] Example:-100>>2=100//(2*2) =>100//4 =>25 So the 100>>2=25

[@sidindian1982]

Excellent Shortcut .. Sir thnx

[@ianwilliam9690]

king shit - thank you, no idea why there are no videos on youtube that show the actual formula

[@Kishor_D7]

Thank you sir I bless you with short and happy life as if your happy life seems to be short

[@vattemteja]

Why we need to add only zero's in the left shift whether it is +ve ot -ve value? why we are not adding 1's in the empty slots?

[@Codeytek]

You are mind blowing! Well explained.

[@TejaswiniBJBJ]

Can we use bin function on -ve numbers ? For example bin(-20)

[@demian_762]

thank you, this subjet is very complicated and you got me yo understand!

[@naylamp_gaming]

Thank you!! You are extremely good teacher.

[@AmulsAcademy]

Thank you :)

[@ashwinraju7388]

Thanks a lot mam,it really helped me as a beginner to python programming.enjoyed all the videos,your step by step explanations are awesome mam.

[@AmulsAcademy]

Thank you:)

[@blogsbarrel4734]

@@AmulsAcademy Show me how to do 160

[@commenterdek3241]

@@blogsbarrel4734 0b1010000000

[@abhishek.a2773]

Awesome amulya mam was very intresting and satisfying I loved it Thank you 🙂

[@ashleyycrazy7948]

Thank u it was helpful for my exam

[@MajedSalmaoun]

thank you really much that was really helpful ^^

[@Yogi83830]

Well I'm confused in bitwise complement operator you show in the video that ~of 20 in binary 11101011 but I tried multiple times maybe im doing wrong or don't know please explain i check the binary form of -21 is -0b10101

[@sujashpratihar3586]

Mam in the bitwise right shift, if there is negative number then, the no of shifted digits jitne honge front me utne hi 1 honge kya??🤔🤔

[@bhukyabhanu8148]

Gud explanation...And gud voice..and I can understand easily..

[@rey4874]

thanks a lot this was very easy to understand

[@AmulsAcademy]

Glad to hear that! :)

[@ammarkhan2927]

That was very nice explanation

[@iush7344]

Nice i got the topic i appreciate

[@lokeshkannan6958]

Super explaination

[@vasudevvijay75]

What if , I'm doing compliment for 21, I Will get -22, then the binary format is 00010110 for +be 22, 1's compliment= 11101001, and next I want to add 1, then how Will I get ~21 .

[@poulamighosh9204]

Thank you🙏

[@firststep3160]

Thanks a lot mam your explanation is too helpful 👍🙏🙏😘😘😍

[@AmulsAcademy]

Thank you :)

[@orangeinfotainment620]

Thank You!

[@eraedu4909]

Thank you so much....

[@japhethachimba174]

Hello mam. Can't understand the left and right shift why is the two values discarded

[@arunpraveenrajs4763]

Awesome explanation akka... thanks a lot🙏🙏

[@AmulsAcademy]

Welcome 😊

[@jobseeker5093]

Seriously iam a noob with non it background but i understand very clearly, thank u girl

[@tsmdesk6735]

Thank you mam

[@siddhesh1034]

Logic behind negative number right shift is not correct. I am trying to do in python 2.7.15 IDLE. (-68)>>3 giving me output as -9. How this could be -9?? If we add 111 in empty location at left side.

[@AmulsAcademy]

binary representation of -68 is 1011 1100 >> 3 so , 1111 0111 this is the binary representation of -9 that's why we are getting -9 in the output :)

[@neatvfx]

good content and crystal clear

[@AmulsAcademy]

Thank you 😊

[@geethikaisurusampath]

Thank you

[@Vyshu5]

Thanks ma'm. It is very clear. And will you please tell me why should we use it in programming?

[@ahmedchouihi]

Thanks for the tutorial, but when I checked this method with x

[@sarang9756]

60 is 00111100, if we left shift to 3 places, the first two zeros gets discarded but the 1 is in a place corresponding to 256... That's why you get 480 as answer

[@PihFrags]

Nice tutorial. Greetings from Poland

[@ManiSrikumar]

i am studying in 9 th class ;even i understand easly thanks for amulys academy

[@AmulsAcademy]

Glad to hear that :)

[@nirajraut9408]

@@AmulsAcademy Hey, why do we consider only 8 bits while shifting? What if we consider more bits?

[@sanjanasathsarani3573]

thank you very mutch

[@EzraRain]

good explantion

[@ShaikAbdulFayazYCE]

What a video no doubt st all even for beginners

[@AmulsAcademy]

Thank you 😊

[@arindampal4214]

Very good explanation.

[@AmulsAcademy]

Thank you 😊

[@dilanmjayawardena5894]

this is great

[@muhammadriaz6859]

thank you miss

[@sagarverma9304]

excellent

[@anwaralam3136]

i have one more dought which i would like to ask you, from 4 months iam learning python and i learned it well of python basic,suddenly were iam learning the python language they told me to learn C language now so my question is if I learn now C language do i will get confused with these TWO languages between THE PYTHON and C PROGRAMMING language please do let me know please please kindly do let me know .....!!!! THANK YOU...!!

[@AmulsAcademy]

Don't get confused:) Some concepts are same in both the language just syntax are different. While learning C compare it with python so you will understand the difference and you won't get confused:)

[@anwaralam3136]

so you mean to say that i will not get confused, i just have to do comparison with both the language while studying the c language right i have compare c and python while studying the c language...!! thank you..!! THANKS AGAIN..!!!

[@AmulsAcademy]

Everyone has their own way to learn something. I will do this method it may work for you:)

[@manifollowheart]

Tq so much you're videos are impressive..😊

[@gurjit___sidhu2662]

Dear Mam , please can you upload videos for sqlite3 in python

[@AmulsAcademy]

Sorry currently i can't:) @gurjit 777 sidhu

[@AmulsAcademy]

Thank you:)

[@drsmahesan203]

Madam, please note that ~0 = -1 (not 1) ~1 = 0 Python defines ~n for an integer n such that ~n = -(1 + n) or n + ~n = -1 For example, ~20 = -21 and ~-21 = 20, ~0 = -1 , ~1 = -2

[@anwaralam3136]

thank you for providing the video of the remaining three bitwise operator but it would have been greate if u had provided the example of negative value also for the bitwise leftshit and the right shift operator. thank you...!!!

[@AmulsAcademy]

Welcome:) You can try that by yourself :) I have explained how to convert negative value to binary form, then you need to shift the bits and you need add 1 in right shift, you need to add 0's in left shift:) Try this by yourself if you have any doubt you can ask me:)

[@anwaralam3136]

thank you for the reply i surely try that with the negative values thank you again...!!!

[@Yoosuf_ahamed]

Thank you from sl

[@AyushiSharmaDSA]

thank u for the video

[@AmulsAcademy]

You're welcome :)

[@CharlesDike]

the best!

[@saikrishna6296]

What if we get 1 insted of zero can u tell me ~45 is -46 can u please explain me

[@AmulsAcademy]

45 = 00101101 ~45 = 11010010 :)

[@anamaypatil8804]

can anyone explain how that number 11101011 is -21

[@bhaskar_5168]

clean teaching skills..thanks a lot for teaching simply like a school teacher

[@AmulsAcademy]

Welcome:)

[@anilkumarreddy9349]

I have a dought y your taking 00010100 what the use of left side 3 zeros. 10100 =20

[@AmulsAcademy]

Here we are representing number using 8 bits 😊

[@MauriceWilliams]

You are a great teacher. I can hear your personality in your voice and I can tell that you're a sweet lady. However I don't quite understand Bitwise Operators yet. Thanks your your effort.

[@AmulsAcademy]

Thank you so much 😊

[@md.golamrabby3000]

Thanks a lot

[@AmulsAcademy]

Pleasure :)

[@MrChilo89]

Thank you , but at the end how do you technically use the bitwise?

[@vikasbharati675]

directly use the bitwise operator

[@rajasekharreddy8797]

Extraordinar y. Medam Iam a cse student

[@javascriptwar9525]

Thanyou mam..☺

[@AmulsAcademy]

Pleasure :)

[@hvkhvhk7340]

thxx a lotttt

[@entertain_free]

You are good 👍

[@AmulsAcademy]

Thank you :)

[@saibharathi5960]

upto how many shifts we can do?

[@AmulsAcademy]

not more than size of integer :)

[@manikantagangishetti5972]

we can assign any number or by default we need to take a=20. please help me out.

[@AmulsAcademy]

No you can take any value:)

[@kanikadua580]

Thanks

[@AmulsAcademy]

Welcome :)

[@dev3054]

5:59, when applying bitwise complement to odd numbers, I m not getting the same binary code. Ex: ~21 Ans: -22 Binary for 21 is 00010101 After applying complement it is 11101010, it is equal to -22 Then 22 binary is 00010110 2's complement After flipping 1's complement is 11101001, adding one gives 11101002, it is not the same as ~21 When I am doing for even numbers it is giving the correct answer, why it is wrong when I am doing with an odd number

[@AmulsAcademy]

You did mistake in the step, while adding 1 to binary representation of 22. :)

[@KhiladiXGaming]

202

[@AmulsAcademy]

Because int is 4 byte and when we take 202 it is represented as 00000000 00000000 00000000 11001010

[@labbdogg2929]

It's the way she explained it, I got confused as well, instead of dropping the bits from the left operand i:e after converting 202 to (0b), add 0s to the right of the left operand, in your case add (000) at the end of 202’s (0b) then convert to decimal. Or simply use this formula 202 x 2**3

[@lohiths4630]

When I tired to check 45 compliment its giving wrong answer

[@hasithalakshan5982]

realy nice this'🥰

[@AmulsAcademy]

Thank you! 😊

[@hasithalakshan5982]

@@AmulsAcademy 😘😘😘😘🧡

[@adnanismail9626]

Thank you ... But l miss understanding why (~20 is -21 ) not 235 that is = 11101011

[@arpitkesarwani6123]

Am not sure but i think by giving a negation sign for positive no. (20) system will search for binary of negative no.(-21) nd when u will give negation for negative no. System will search for binary of positive no.

[@drsmahesan203]

Python defines ~a for an integer a such that a + ~a = -1 or ~a - = - (1 + a). For example, ~0 = -1.; ~20 = -21; ~-21 = 20 etc.

[@vandavasievents9281]

2^4 +2^6 bitwise left then 2^4 how

[@venkatgalla45]

thank you,explanation is good

[@AmulsAcademy]

My Pleasure :)

[@spiralcarbon8658]

i wonder those who put dislike on such a tutorial..maybe they are proffesional programmers. To learners like me...i greatly appreciate this tutorial 👏🏻👏🏻👏🏻👏🏻

[@AmulsAcademy]

Thank you :)

[@kartikmehra1391]

i am sorry mam but i fall in love your work "OKAY" . This word kill me when you say it. OK. OK. OK

[@dhruvchaudhary8054]

print("your voice is sweet")

[@sureshrajan7144]

Why 2power 4 and 2 power 16.that's only confusion

[@boopathyraji8851]

Print("thank you very much")

[@paradiseruler9881]

Sorry! But it's not your coding area .😄

[@thecrazygamer7334]

Error in line 1

[@ahmedelmawrdy4381]

In line 1 page app.py. Print('thank you ....') ^ Did you mean print()?

[@Robocontest-yechimlari]

👍👍

[@trixion74]

okie

[@muthusivaraj7193]

4:54

[@drsmahesan203]

It is confusing when you talk about negative numbers. In Python, if b = -20 b > 2 gives -5 How would you explain this? if c = -2015 c 2 gives -257

[@ahmedelmawrdy4381]

Please could you write the answer on with your own!

[@onlinewebsites3476]

Why Only Python ?

[@ravindranathbedre2588]

❤️❤️

[@AmulsAcademy]

😊❤️

[@apurvmj]

Where is it used in real life?

[@jaseerhussain2977]

madam super

[@AmulsAcademy]

Thank you very much :)

[@drsmahesan203]

It is not right to assume a bit-length for an integer in Python. Python uses variable number of bits depending on the value For example 20 needs 5 bits. bit_legnth method gives the value. a = 20; b=-20 a.bit_length() gives 5 b.bit_legnth() also gives 5 if c = 1025 c.bit_length() gives 11 (-1025).bit_length() also gives 11 d= 10**30 d.bit_length() gives 100 e = 10**40 e.bit_length() gives 133 :-)

[@readbhagwatgeeta3810]

Thanx for your comment...it was very new for me, no one told me that before (specially that bit_length() method)☺️🙏

[@mohdriyazuddin9047]

Mam I'm very week complement topic so plese don't lafaing Mam my qn I 20 binary no 00010100 Than comments using 11101011 this no binary 235 (21 kha se agya ples answer I can not understand)will you explain pls

[@tmhr2326]

Logic gates ...

[@anushkamaddumaarachchi1488]

I love u

[@romasaparov4862]

Ok... Ok... Ok...

[@AdityaSingh-lc7pl]

If you know how to convert binary to decimal then check out that 11101011 is not -21.... 🤦😩

[@nabeel5765]

yes

[@This-Is-Vitou]

Imagine learning python from a kid. me doing it now.

[@Goutham-exists]

:0 welp same ;-;

[@abiryt3552]

You are so sweet

[@tanupandey1500]

Bhai python bolna shikh lo pyton pyton kiya krti ho

[@tnereffidsiemanresuymees8703]

Hello your computer has virus

[@tanveersayyed561]

dont make small thing more complicated we all ready fedup with half knowledge😡😡😡

[@trixion74]

okie