<div dir="ltr">Hello,<br><br>I am trying to understand the structure of the arrays that store velocities and co-ordinates in nek that is available under several subroutines like uskchk,usrdat2,usrdat etc. <br>Based on my understanding, I found that the velocities, say vx has the form vx(lx1,ly1,lz1,e) but I found that there are many arrays that address the co-ordinates namely xm0,xm1,xc etc though I am not sure what it denotes. Can all these be accessed from any subroutine in the usr file ? I have attached herewith a picture where I have mentioned how I thought the data structure might be. But, I would really like to know how one would access the co-ordinates of say ,a particular element and what xm0,xm1,xc denote for. Please correct me if I am wrong about the data structure. Thanks.<br>
<br clear="all">Regards<br>Shriram Jagannathan<br>
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