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Results tagged with matrices
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user 159985
Questions where the notion matrix has an important or crucial role (for the latter, note the tag matrix-theory for potential use). Matrices appear in various parts of mathematics, and this tag is typically combined with other tags to make the general subject clear, such as an appropriate top-level tag ra.rings-and-algebras, co.combinatorics, etc. and other tags that might be applicable. There are also several more specialized tags concerning matrices.
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How to design a matrix function to meet the following conditions
The proof
As there are no restrictions on $X$ and $Q$ the zero matrices are possible choices for $X$ and $Q$ (choose $q$ to be the zero vector for $Q$). … Alternatives
There are several ways to modify the assumptions to get this to work:
Restrict the set of matrices $X$ and $Q$ for which the requirements have to hold. …
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