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Create a field of type cham_no, map, or cham_elem. You can create a field


* by assigning values to knots or meshes,


* by assembling (and/or combining) pieces of existing fields,


* by evaluating the functions of a field of functions to make it a field of reals,


* by modifying the geometric representation of a field (node passage :math:`\iff` Gauss points for example),


* by extracting a field from a SD_RESULTAT data structure (evol_ther, evol_noli, mode_meca,...).


* based on the values contained in a TABLE data structure,


*...

You can also use this command to combine several fields linearly, but you can make more "complicated" combinations: multiplication of fields...

Produces a data structure such as cham_no or map or cham_elem

Note: The command is not re-entering except for operations ASSEet COMB.

In this case, the CHAM_GDest keyword is mandatory.