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Questions about the properties of vector spaces and linear transformations, including linear systems in general.

1 vote
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Find a vector in the null space of a large dense matrix, where elements in the matrix are no...

I am working with Conjugate Gradient method to solve for 𝐴𝑥=𝑏, where 𝐴 is an extremely large PSD and Singular matrix. I cannot directly access the elements of 𝐴. The only thing I can do is comput …
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