: The gold standard for free lecture videos and official summary notes.
Moves from solving equations to finding "best fit" solutions and measuring space. Finding the closest solution to when no exact solution exists, often using the normal equations. Gram-Schmidt ( ): A process to create orthonormal vectors, leading to the QRcap Q cap R factorization. lecture notes for linear algebra gilbert strang
The space spanned by all linear combinations of the columns of Dimension: (the rank of the matrix). Location: A subspace of Significance: has a solution if and only if 2. The Nullspace : The gold standard for free lecture videos