▶SEND ME THEORY QUESTIONS◀ ryan.e.dougherty@icloud.com
▶ABOUT ME◀ I am a professor of Computer Science, and am passionate about CS theory. I have taught many courses at several different universities, including several sections of undergraduate and graduate theory-level classes. ... https://www.youtube.com/watch?v=DHNEAsx3Ak4
Here we go over the context free grammar (CFG) to pushdown automaton (PDA) conversion. This was recorded on 13 March 2017.
Easy Theory Website: https://www.easytheory.org
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▶SEND ME THEORY QUESTIONS◀
ryan.e.dougherty@icloud.com
▶ABOUT ME◀
I am a professor of Computer Science, and am passionate about CS theory. I have taught many courses at several different universities, including several sections of undergraduate and graduate theory-level classes.
...
https://www.youtube.com/watch?v=ODBcaaC1uXY
Here we do an example of Merge Sort - the main video is here: https://youtu.be/XsTgN-jKMUQ
#easytheory #gate #theory
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▶SEND ME THEORY QUESTIONS◀
ryan.e.dougherty@icloud.com
▶ABOUT ME◀
I am a professor of Computer Science, and am passionate about CS theory. I have taught many courses at several different universities, including several sections of undergraduate and graduate theory-level classes.
...
https://www.youtube.com/watch?v=qjB7JEC05MA
Here we use mapping reductions to prove that EQ_TM is not recognizable nor is its complement. We also show that A mapping reduces to B if and only if A-complement mapping reduces to B-complement, which is useful.
Easy Theory Website: https://www.easytheory.org
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Gold Supporters: Micah Wood
Silver Supporters: Timmy Gy
▶SEND ME THEORY QUESTIONS◀
ryan.e.dougherty@icloud.com
▶ABOUT ME◀
I am a professor of Computer Science, and am passionate about CS theory. I have taught many courses at several different universities, including several sections of undergraduate and graduate theory-level classes.
...
https://www.youtube.com/watch?v=Dj2sjiahYng
Here we go over the course structure and start an intro to Python. This Algorithmic Problem Solving course was given in the summer semester of 2016, and covers many different techniques of trying to solve problems algorithmically. This lecture was recorded on 16 May 2016.
Easy Theory Website: https://www.easytheory.org
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If you like this content, please consider subscribing to my channel: https://www.youtube.com/channel/UC3VY6RTXegnoSD_q446oBdg?sub_confirmation=1
▶SEND ME THEORY QUESTIONS◀
ryan.e.dougherty@icloud.com
▶ABOUT ME◀
I am a professor of Computer Science, and am passionate about CS theory. I have taught many courses at several different universities, including several sections of undergraduate and graduate theory-level classes.
...
https://www.youtube.com/watch?v=FoqEr8VVtJ4
Donation (appears on streams): https://streamlabs.com/easytheory1/tip
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Youtube Live Streaming (Sundays) - subscribe for when these occur.
Merch:
Language Hierarchy Apparel: https://teespring.com/language-hierarchy?pid=2&cid=2122
Pumping Lemma Apparel: https://teespring.com/pumping-lemma-for-regular-lang
If you like this content, please consider subscribing to my channel: https://www.youtube.com/channel/UC3VY6RTXegnoSD_q446oBdg?sub_confirmation=1
▶SEND ME THEORY QUESTIONS◀
ryan.e.dougherty@icloud.com
▶ABOUT ME◀
I am a professor of Computer Science, and am passionate about CS theory. I have taught many courses at several different universities, including several sections of undergraduate and graduate theory-level classes.
...
https://www.youtube.com/watch?v=ThN1n3eJDHE
Here we show that the language of all strings with the same number of 00s and 11s is not regular. This is a somewhat standard application of the pumping lemma, but the choice of string and conclusion are slightly different.
Easy Theory Website: https://www.easytheory.org
Become a member: https://www.youtube.com/channel/UC3VY6RTXegnoSD_q446oBdg/join
Donation (appears on streams): https://streamlabs.com/easytheory1/tip
Paypal: https://paypal.me/easytheory
Patreon: https://www.patreon.com/easytheory
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Youtube Live Streaming (Sundays) - subscribe for when these occur.
Merch:
Language Hierarchy Apparel: https://teespring.com/language-hierarchy?pid=2&cid=2122
Pumping Lemma Apparel: https://teespring.com/pumping-lemma-for-regular-lang
If you like this content, please consider subscribing to my channel: https://www.youtube.com/channel/UC3VY6RTXegnoSD_q446oBdg?sub_confirmation=1
▶SEND ME THEORY QUESTIONS◀
ryan.e.dougherty@icloud.com
▶ABOUT ME◀
I am a professor of Computer Science, and am passionate about CS theory. I have taught many courses at several different universities, including several sections of undergraduate and graduate theory-level classes.
...
https://www.youtube.com/watch?v=GGfJ4XjpeJ8
Here we show why binary search is often taught with a subtle bug that would be really hard to detect without really thinking about how binary search actually works. We show a pseudocode implementation and go over why some languages would cause such a bug to occur, and a possible fix. Specifically, the bug is an overflow when computing the midpoint. This algorithm is taken from leetcode.com, which shows that you shouldn't just blindly implement an algorithm taken from something you read online.
Easy Theory Website: https://www.easytheory.org
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If you like this content, please consider subscribing to my channel: https://www.youtube.com/channel/UC3VY6RTXegnoSD_q446oBdg?sub_confirmation=1
▶ABOUT ME◀
I am a professor of Computer Science, and am passionate about it. I have taught many courses at several different universities, including several sections of undergraduate and graduate theory-level classes.
The views expressed in this video are not reflective of any of my current or former employers.
...
https://www.youtube.com/watch?v=MhEQdHLyrcg
Here we show that the language of all strings of the form 0^2n 1^n is not regular. The proof is very similar to the 0^n 1^n language.
Easy Theory Website: https://www.easytheory.org
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Language Hierarchy Apparel: https://teespring.com/language-hierarchy?pid=2&cid=2122
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If you like this content, please consider subscribing to my channel: https://www.youtube.com/channel/UC3VY6RTXegnoSD_q446oBdg?sub_confirmation=1
▶SEND ME THEORY QUESTIONS◀
ryan.e.dougherty@icloud.com
▶ABOUT ME◀
I am a professor of Computer Science, and am passionate about CS theory. I have taught many courses at several different universities, including several sections of undergraduate and graduate theory-level classes.
...
https://www.youtube.com/watch?v=vV6goaEFxyQ
Here we address one of the more "infamous" GATE exam problems, namely Question 39 from the 2017 exam. Let f be an arbitrary total function from A* to B*, where A, B are finite sets, and let L_f = {x # f(x) : x in A*} be a language. The question asks to relate f and L_f against each other. If f is computable, what can we know about L_f, and if L_f is decidable/recognizable/etc., what can we determine about f?
Easy Theory Website: https://www.easytheory.org
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Youtube Live Streaming (Sundays) - subscribe for when these occur.
Merch:
Language Hierarchy Apparel: https://teespring.com/language-hierarchy?pid=2&cid=2122
Pumping Lemma Apparel: https://teespring.com/pumping-lemma-for-regular-lang
If you like this content, please consider subscribing to my channel: https://www.youtube.com/channel/UC3VY6RTXegnoSD_q446oBdg?sub_confirmation=1
▶SEND ME THEORY QUESTIONS◀
ryan.e.dougherty@icloud.com
▶ABOUT ME◀
I am a professor of Computer Science, and am passionate about CS theory. I have taught many courses at several different universities, including several sections of undergraduate and graduate theory-level classes.
...
https://www.youtube.com/watch?v=hXgDrfrIy8E