Really want to know more about matrices & their application in programming. How're they used in prog. & for what achievement

Question

Implementation of Matrices in programming

Answer 1

Vectors, matrices and tensors in general may have many applications, mostly for mathematical, abstract representations of data. It can be used in scientific computations, where for example tensors may represent some observations and by calculating the dot product of two of them you can tell whether they are similar or different. That tells you if your observations are similar to each other and enables to spot anomalies.
That's just an example, but matrices and higher ranked tensors are nowadays staple food of neural networks as they store representations of all kinds of data processed by the nets.