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Lecture 2022-02-17. Using the Fundamental Theorem of Arithmetic to answer questions like how many divisors a number has. Karatsuba multiplication. Writing and solving recurrence relations. Binary…
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More about sets. Powerset of a set. Cross product of sets. The axiomatic approach to set theory. Languages (sets of strings).
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NOTE: "Typo" in what I wrote on one slide: R={x: x \not\in x}. Basics of sets. The only basic vocabulary is \in and \emptyset. Defining other relations: union, intersection complement,…
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Basics of sets. The only basic vocabulary is \in and \emptyset. Defining other relations: union, intersection complement, set difference, symmetric difference. Identities and their proofs, including…
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Videos and all other materials are copyright 2021 Matthias Köppe and shared as Open Educational Resources subject to the Creative Commons Attribution-ShareAlike 3.0 Unported (CC BY-SA 3.0)…
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This is the video of the third lecture. It's crude as I made it from my laptop, as the room has no video recording. Just like before..
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ECS 153, Computer Security. This presents the basics of an SQL injection attack (as one was discovered on campus), finishes the robust programming material, and begins discussing vulnerabilities…
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ECS 153, Spring 2021. Computer Security. This begins some sessions on robust programming. The lecture starts at 5:31 into the video.
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