In the data-driven era, data analysis has become a core skill across various industries. Python, with its inherent advantages ...

This is a preview. Log in through your library . Abstract Abstract. In this paper, Let the matrix 𝐴 ∈ 𝐶𝑛×𝑛 with Ind(𝐴) = 𝑘, we first construct two bordered matrices based on [32], which gave a ...