Master Modular Arithmetic in Lecture 9 of MIT's Math for CS π
Dive into Lecture 9 of MIT's 6.1200J course and unlock the secrets of modular arithmetic, a fundamental concept for computer science and cryptography. Perfect for students eager to strengthen their math skills!

MIT OpenCourseWare
3.4K views β’ Jul 22, 2025

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MIT 6.1200J Mathematics for Computer Science, Spring 2024
Instructor: Brynmor Chapman
View the complete course: https://ocw.mit.edu/courses/6-1200j-mathematics-for-computer-science-spring-2024/
YouTube Playlist: https://www.youtube.com/playlist?list=PLUl4u3cNGP61VNvICqk2HXJTonnKgAc9d
Modular arithmetic helps answer questions like: What is even+odd? What day of the week will it be 100 days from now? What computation do you need to do? (rem(100, 2) = 2, so Tues+2=Thurs).
License: Creative Commons BY-NC-SA
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We encourage constructive comments and discussion on OCWβs YouTube and other social media channels. Personal attacks, hate speech, trolling, and inappropriate comments are not allowed and may be removed. More details at https://ocw.mit.edu/comments.
Instructor: Brynmor Chapman
View the complete course: https://ocw.mit.edu/courses/6-1200j-mathematics-for-computer-science-spring-2024/
YouTube Playlist: https://www.youtube.com/playlist?list=PLUl4u3cNGP61VNvICqk2HXJTonnKgAc9d
Modular arithmetic helps answer questions like: What is even+odd? What day of the week will it be 100 days from now? What computation do you need to do? (rem(100, 2) = 2, so Tues+2=Thurs).
License: Creative Commons BY-NC-SA
More information at https://ocw.mit.edu/terms
More courses at https://ocw.mit.edu
Support OCW at http://ow.ly/a1If50zVRlQ
We encourage constructive comments and discussion on OCWβs YouTube and other social media channels. Personal attacks, hate speech, trolling, and inappropriate comments are not allowed and may be removed. More details at https://ocw.mit.edu/comments.
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Video Information
Views
3.4K
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66
Duration
01:19:46
Published
Jul 22, 2025
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4.6
(3)