Linear Algebra: Deep Learning Book
Linear algebra is a form of continuous rather than discrete mathematics.
Scalars, Vectors, Matrices and Tensors
Multiplying Matrix and Vectors
Identity and Inverse Matrix
Identity Matrix
; where main diagonal = 1's and all other entries = 0's
An identity matrix is a matrix that does not change any vector when we multiply that vector by that matrix.
Inverse Matrix
Denoted by ; where
Use case: can be used to solve linear equations:
Linear dependence and Span
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