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Results tagged with matrices
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user 15871
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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Is there a closed form expression for the inverse of the matrix with elements $A_{i,j}=x_i$ ...
Hello All
Consider a matrix with elements:
$A_{i,j}=x_i$ for $i=j$
$A_{i,j}=1$ for $i\neq j$
Is there a closed form expression for the elements of $A^{-1}$?
Will be glad to know of any referenc …
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