File r38/packages/plot/parray.red from the latest check-in
module parray; % multidimensional arrays. symbolic procedure mk!-p!-array3(nx,ny,nz); <<for i:=0:nx do iputv(w,i,mk!-p!-array2(ny,nz)); w>> where w=mkvect(nx#+1); symbolic procedure mk!-p!-array2(ny,nz); <<for i:=0:ny do iputv(w,i,mkvect(nz#+1)); w>> where w=mkvect(ny#+1); symbolic procedure p!-get3(v,i,j,k); igetv(igetv(igetv(v,i),j),k); symbolic procedure p!-put3(v,i,j,k,w); iputv(igetv(igetv(v,i),j),k,w); endmodule; end;