Dear GAP Forum,

Anatolii Rukolaine wrote

I've been trying to use GAP-function "Symmetrisations". In the manual
for GAP-3.4.3 in Section {Symmetrisations} I found an example:

...

I modified the example and didnot receive results:

...

gap> Symmetrisations(Ch_T,Chars,3);
Error, List Element: <list>[1] must have a value at
lst[i] := fun( arg[1][i] ) ... in
List( powermap, Length ) called from
Symmetrisations( Ch_T, Chars, 3 ) called from
main loop
brk>

There was indeed a bug, but this has been fixed already a year ago,
with bugfix 16 for GAP 3.4.3.
It is also fixed in the new version GAP 3.4.4.

In the meantime several bugs were fixed,
so every GAP user is recommended to get version 3.4.4 of GAP.

Kind regards
Thomas