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7.7.13.0. Weyl
Procedure from library nctools.lib (see nctools_lib).

Usage:
Weyl()

Return:
ring

Purpose:
create a Weyl algebra structure on the basering

Note:
Activate this ring using the command setring.
Assume the number of variables of a basering is 2k. (if the number of variables is odd, an error message will be returned)
by default, the procedure treats first k variables as coordinates x_i and the last k as differentials d_i
if a non-zero optional argument is given, the procedure treats 2k variables of a basering as k pairs (x_i,d_i), i.e. variables with odd numbers are treated as coordinates and with even numbers as differentials

Example:
 
See also: makeWeyl.


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