In addition to providing array referencing and setting, narray allows functions to be mapped over each element of the array. Announcement NArray version 0.10 has been released. A way to create functions of narray code. A C interface to narray's. An expanded Tcl library.
Many bug fixes.
NArray is an extension to help Tcl cope with large in-memory numeric arrays. NArray's require only a few more bytes than the storage required by the array. In addition to providing array referencing and setting, narray allows functions to be mapped over each element of the array. If you have netCDF, then narray's can be saved to and loaded from netCDF files. See the man page and the examples for more information.