Given a matrix $\mathbf{X}$, I use $\mathbf{x}_{i}^{T}$ and $\mathbf{x}_{i}$ to denote the $i$-th row and $i$-th column of matrix $\mathbf{X}$ respectively. Now, suppose I want to denote the transpose of the $i$-th matrix row $\mathbf{x}_{i}^{T}$, then what notation will be suitable here?
I know we can represent rows and columns using $x_{i*}$ and $x_{*j}$ respectively. But are there any alternatives?