I A wonderful flow chart for taxonomy of matrices

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This flow chart is a fantastic visual representation of the taxonomy of matrices. It clearly outlines the different types of matrices and their relationships to each other, making it easier to understand and navigate the complex world of matrices.

The chart starts with the basic division of matrices into real and complex, and then further breaks them down into subcategories such as symmetric, skew-symmetric, and Hermitian matrices. It also includes important concepts such as diagonal and triangular matrices, as well as specific types like identity and zero matrices.

One of the most useful aspects of this flow chart is the inclusion of examples for each type of matrix. This not only helps to solidify understanding, but also serves as a helpful reference for future use.

Overall, this taxonomy of matrices flow chart is a valuable resource for anyone studying or working with matrices. It provides a clear and organized framework for understanding the different types of matrices and their properties. Thank you for sharing this helpful tool.
 
Thread 'Determine whether ##125## is a unit in ##\mathbb{Z_471}##'
This is the question, I understand the concept, in ##\mathbb{Z_n}## an element is a is a unit if and only if gcd( a,n) =1. My understanding of backwards substitution, ... i have using Euclidean algorithm, ##471 = 3⋅121 + 108## ##121 = 1⋅108 + 13## ##108 =8⋅13+4## ##13=3⋅4+1## ##4=4⋅1+0## using back-substitution, ##1=13-3⋅4## ##=(121-1⋅108)-3(108-8⋅13)## ... ##= 121-(471-3⋅121)-3⋅471+9⋅121+24⋅121-24(471-3⋅121## ##=121-471+3⋅121-3⋅471+9⋅121+24⋅121-24⋅471+72⋅121##...
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