:35674264 See what I've done till now: \documentclass{article}
\usepackage{amsmath}
\renewcommand{\arraystretch}{1.3}
\usepackage{blkarray}
\usepackage{mleftright}
\begin{document}
\[
\begin{blockarray}{rrlccccc}
& & & u & v & w & \rho & T \\
& & & \downarrow & \downarrow & \downarrow & \downarrow & \downarrow \\
\begin{block}{rrl[c|c|c|c|c]}
& \text{Cont.} & \rightarrow & A_{c,\rho} & A_{c,u_r} & A_{c,u_{\theta}} & A_{c,u_z} & A_{c,T} \\ \cline{4-8}
& x \text{- mon.} & \rightarrow & A_{r,\rho} & A_{r,u_r} & A_{r,u_{\theta}} & A_{r,u_z} & A_{r,T} \\ \cline{4-8}
