MIT 18.06 Lecture 7: Solving Ax = 0 — Pivot Variables, Free Variables & Rank
Systematic algorithm for computing a basis of the nullspace N(A) from echelon form, proving why dim N(A) = n - r free variables.
MIT 18.06 Linear Algebra, Spring 2005
Instructor: Gilbert Strang
View the complete course: http://ocw.mit.edu/18-06S05
YouTube Playlist: https://www.youtube.com/playlist?list=PLE7DDD91010BC51F8
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MIT 18.06 Lecture 6: Column Space and Nullspace
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