如何在矩阵中添加带箭头的行和列标签标识

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如何在矩阵中添加带箭头的行和列标签标识， \documentclass{article} \usepackage{amsmath} \usepackage{blkarray} \begin{document} \[ \renewcommand\arraystretch{ 1.3 } \begin{blockarray}{rcccccccc} & & & u & v & w & \rho & T & \\ & & & \downarrow & \downarrow & \downarrow & \downarrow & \downarrow & \\ \begin{block}{rc[ c @{} c | c | c | c | c @{} c ]} \text{ Cont .} & \to & & A_ { c ,u} & A_ { c ,v} & A_ { c ,w} & A_ { c ,\rho} & A_ { c , T } & \vphantom{\smash[b]{\bigg|}} \\ \ BAhhline {~~~-----~} x\text{-mom} & \to & & A_ {r,\rho} & A_ {r,u_r} & A_ {r,u_{\theta}} & A_ {r,u_z} & A_ {r, T } & \\ \ BAhhline {~~~-----~} A_ {ij}=\quad y\text{-mom} & \to & & A_ {\theta,\rho} & A_ {\theta,u_r} & A_ {\theta,u_{\theta}} & A_ {\theta,u_z} & A_ {u_{\theta}, T } & \\ \ BAhhline {~~~-----~} z\text{-mom} & \to & & A_ {z,\rho} & A_ {z,u_r} & A_ {z,u_{\theta}} & A_ {z,u_z} & A_ {z, T } ………………………………