Introduction to Karnaugh Maps - Combinational Logic Circuits, Functions, & Truth Tables

[@TheOrganicChemistryTutor]

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[@ruchitabhadre2968]

There is a mistake in the last step at 29:17, actually C is 1 in 3rd and 4th row. Apart from that the video was really good, I was able to refresh my concepts!

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yes. i thought i was the only one that detected that

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[@alisheraz5162]

Sir In the last example you have taken D instead of C as a consideration for last relation

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I though he put the prime sign on the D instead of C so than I realize the opposite anyway great video thank you sir

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[@smoyer64]

At 12:37 you missed a reduction. Because Gray's code is used to ensure only a single bit changes between values, you can also wrap horizontally, vertically or both. So the top-right and bottom-right ones should be wrapped vertically into a two element group and the third product should be AC' instead of ABC'. Another reduction was available at 28:52 but this one came about because the function you started with was not itself reduced. When the single green square is drawn, it can instead be grouped with the one immediately below it and going round-trip, that results in a simplification of the original function to C+AD'+A'BD+AB'C. I should also point out that when you place the AD' product into the k-map, you show an example of a wrapped term - if you actually rewrote the function based on having two red circles, you'd end up with two three element terms: AC'D' and ACD'. When you see those two terms together it's pretty clear that the C' and C can be combined. I haven't used k-maps for hardware development for almost 20 years but at the time I was getting pretty good at spotting exclusive-OR gates. Since then, I've used k-maps to turn complex (multi-nested) if-then-else code into a calculated value.

[@NN-en2vg]

Yea I got that one too..

[@Daniel-ot4qw]

@@ellelee453 1+1 doesnt equal 2 because its a logic gate not adding numbers. 1 is on and 0 is off so if both terminals are 1 then the F would be 1 meaning that the final output is on.

[@stephaniecurry45]

Elle Lee what do you mean F = 2 😂? F can only be 1 or 0

[@theguyman232323]

for the one at 12:37. If we wrap the top right with the bottom right, that would be 3 1's which is not the result of a power of 2

[@eac-ox2ly]

@@theguyman232323 He meant grouping only two ones, the top right and the bottom right, not including one 1 representing A=1, B=0 and C=1. Yeah, you'll have the top right 1 in two groups simultaneously but that is completly allowed and you'll end up with a reduced function.

[@thuthaonguyen8424]

at 15:17 F=A'C + AB'+ABC' can be simplified further as F=A'C + AB'+AC' if we use the top-right cell and the bottom-right cell instead of the only cell in the right bottom

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[@draculemihawk4959]

12:22 You can encircle or group together the lower right (110) and the upper right(100) so Final simplest answer is A'C+AC'+AB'

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bro i think you made a mistake in the last one. instead of circling where C is 1 you circled where D is 1. great video i learnt a lot. @The Organic Chemistry Tutor

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[@o_smoke_a]

Here are some tips I learned myself by watching this video that might help you write the function in its most reduced form. [for example, the final function was not in its most reduced form. The simplest form is C+A'BD+AD'] - His Kmap for the final function is wrong since he switched his C and D. Tips: 1. you must have every single (1) from the Kmap in a group. 2. to have the simplest form of the function, each (1) should be in the largest group possible. 3. remember that groups can include any factors of 2 (ex: 1, 2, 4, 8, 16...) 4. REMEMBER that you can have groups of (1)s that wrap around the Kmap. --- For example, the correct Kmap of the final function (without the 1 in column 4 row 2) has 3 different groups. ---- One group are the 8 (1)s in the bottom 2 rows. ---- Another group is includes the (1) in row 2 column 2, but since you want to put it in as big as a group you can, you group that one with the (1) below it. ---- The Last group includes the 2 (1)s at the top right along with the 2 (1)s in the bottom right (again, this is because you want to put them in the biggest group possible, and you can wrap the groups around the Kmap. I wrote this because these were questions and thoughts that I had that he did not explicitly answer or address.

[@ovicita]

correct

[@lance5964]

The introduction of the idea of certain groupings being dependant or independant on certain variables and their values and using this to choose which variables to put in the equation was so amazing. Once I understood that, every problem seemed so easy. Thank you so much.

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0:12 “Enter Karnaugh Maps” So badass i literally got chills.

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[@paulsantiagovaldez5312]

Hello sir. On the AB'C part (29:22), I think you put 1 and enclosed the part where D = 1, and not C = 1 sir

[@circuitsanalytica4348]

Yes, you are right....

[@mr.jamaljumma3391]

Yes, I've notice this too.. so it's make the final function as F=C+AD`+A`BC`D+AB`D

[@lighthouse5364]

@@circuitsanalytica4348 me too I noticed it

[@saviourdelvin2814]

I also noticed it.. hope he collects that.. thanks

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[@NoName-yy1jx]

29:18 this is D's ones not c's

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yea he did it wrong but its ok.

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Yeah he messed that up but the lesson is 🔥

[@cr0cop738]

Noticed that too

[@danahusin1144]

today we studied this lecture at uni which i understand nothing so i searched it up and i found this video,, and i think my teacher had copied and pasted this because she did the exam mistake as this guy did hahahah at 29:18

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i just finished my digital system class. I was so worried about k-table but not after watching this. Thank you so much sir for teaching us your knowledge in a simplest way.

[@Sirjohnwilliamuk]

Plot twist he deliberately made and error with C and D at the end to just prove he successfully taught us the right way, thus we learned and understood how to do it right!

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hahah was looking for this comment

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[@mafokookie8820]

sir in the last question 29.17 . you took D as 1 instead of C . let me know if im wrong .

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ISTG it's always this guys that helps me HAHAHAH since I entered uni on 2019 until now

[@franknjanji7850]

This was so clear, and being able to notice a mistake on the last example means i have understood the concepts. Thank you💯

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Had a full semester of this, barely understood a thing, with this 30 minutes video, I understood everything

[@justins7796]

8:59 If you rotate 90 degrees clockwise you'll see one happy logic circuit.

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And if you rotate counter clockwise you'll se a dildo with 2 jet engines..

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The entire semester this unit has given me great headache...but in 30 minutes,you've chenged my life, thanks a lot

[@mucyurabuhorophilemon7828]

Thank you for the nice course , it is helpful and on the last step you did AB'D instead of AB'C, it is a small mistake but I appreciate your warm work! !!!!

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This guy dey burst my head😭 From Nigeria Your explanation is so simple to understand I have exams next week This was really helpful Thank you

[@hetav6714]

So no one is going to talk about why the channel named "Organic Chemistry Tutor" is teaching Karnaugh Maps. Alright....

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I mean this guy has covered Analytical maths and concepts of calculus if I am not wrong

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at this point, the guy knows everything

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Maybe He's working on electronics like organic memory devices

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U do all, followed you since high school and now University ❤✌️💪

[@fantanaideilor]

At 00:29:40 it's 1 AND 0, not 1 'times' 0. There are some other mistakes, but overall excellent work! Thanks!

[@zeex4904]

Thank you so much! My professor explained kmaps in literally 2 lectures and I didn’t understand anything till I watch this video. You saved me.

[@indusamanmali1011]

Any Engineering student here?

[@amirabi4621]

😢😢😢

[@emoryhiensahl3140]

You finally made me understand how this works. Thanks from an engineering student from Norway!

[@solomonglenda6811]

This was very helpful! Thank you so much. I wish there was a way you could produce more videos in engineering. It’ll really help us.

[@feagy]

Bro how we take f if there is only 1 one in k map

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All the way from ZImbabwe . NDATENDA👏

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Who watching 2024-2025 academy ❤?

[@AhMeD.GaMeR1]

I will say it with confidence, the best channel to learn everything

[@jeroenvanlangen8953]

I'm new to Karnaugh maps, so I'm learning to use them, but I wonder: on the example at 12:40, is it allowed to not map the ones, but map the zeros? For example like: (C'A'+ABC)'

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Once again hes here to save the day, he saved me Wednesday and now he’ll save me Friday

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you are changing the lives .God bless you

[@seanD11]

At 17:49, can you also group the two ones horizontally on the second row?

[@leimad13]

Funny watching it now and seeing a question from just several hours ago:) To answer, yes you could but it is not needed at all as these two ones are already in other groups and are taken care off (the combination of ABCD for these ones is done through these two other groups).

[@seanD11]

@@leimad13 thankyou!!

[@blazingblackol1248]

Actually you can't you need to group the one with the maximum ones ,so if you group the horizontal ones other ones will only get grouped as one

[@leimad13]

@@blazingblackol1248 Yes but he asked if he can also group them. You can if you want to but they are completely redundant.

[@oldiesmusiolife]

Man, i have no words really like a 3 hr class in just 30 minutes thats to the level, thanks man keep it up!!!

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You're legit amazing!!! My theory has been that you're a pre-med student making these videos as you go along. (which makes it all the more impressive that you have the time for that!!!) Is that correct?

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Takes one to know one :p although premeds have a tendency to project bc they're so neurotic and isolated sometimes.

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Why is he so good in almost all the courses?

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4:29 nice Shakespeare quote here sneaky

[@Roxykyouto]

Thank you. Always the best. My teacher failed to teach me this within 90 min but here I learned it within 15 mins

[@zeductively8319]

I wish i can pass my Midterm hmm there is mistake in last minutes but I glad I noticed it by myself. Thank you

[@circuitsanalytica4348]

Yes bro, he is really good...