How do I recover the renumbered mesh connectivity after using the symrcm function on my matrix?

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Amarpal 2013-8-8

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https://ww2.mathworks.cn/matlabcentral/answers/84364-how-do-i-recover-the-renumbered-mesh-connectivity-after-using-the-symrcm-function-on-my-matrix

Hello!

I'm trying to renumber my Finite element mesh, and I'm trying out the symrcm function implemented in MATLAB. I can get things working and symrcm dramatically reduces the bandwidth of my matrix.

My question is about recovering the mesh connectivity from the renumbered sparse matrix. Does symrcm provide a mapping between the old and new node numberings?