Error, List Assignment: must be a mutable list in
Gcd( sym[k - 1], 2 ) at /Users/markmixer/gap-4.11.1/pkg/RAMP/lib/sggi.gi:210 called from
COXETER_GROUP_SIZES( sym ) at /Users/markmixer/gap-4.11.1/pkg/RAMP/lib/sggi.gi:237 called from
UniversalSggi( SchlafliSymbol( M ) ) at /Users/markmixer/gap-4.11.1/pkg/RAMP/lib/groups.gi:265 called from
ExtraRelators( M ) at /Users/markmixer/gap-4.11.1/pkg/RAMP/lib/duality.gi:10 called from
Dual( p ) at /Users/markmixer/gap-4.11.1/pkg/RAMP/lib/duality.gi:55 called from
<function "IsSelfDual method">( )
called from read-eval loop at stdin:13
type 'quit;' to quit to outer loop
brk>
M:=ToroidalMap44([1,2],[2,-1]);; IsChiral(M);; M2:=EnantiomorphicForm(M);;
Dual(M2);
Error, List Assignment:
must be a mutable list in Gcd( sym[k - 1], 2 ) at /Users/markmixer/gap-4.11.1/pkg/RAMP/lib/sggi.gi:210 called from COXETER_GROUP_SIZES( sym ) at /Users/markmixer/gap-4.11.1/pkg/RAMP/lib/sggi.gi:237 called from UniversalSggi( SchlafliSymbol( M ) ) at /Users/markmixer/gap-4.11.1/pkg/RAMP/lib/groups.gi:265 called from ExtraRelators( M ) at /Users/markmixer/gap-4.11.1/pkg/RAMP/lib/duality.gi:10 called from Dual( p ) at /Users/markmixer/gap-4.11.1/pkg/RAMP/lib/duality.gi:55 called from <function "IsSelfDual method">( )
called from read-eval loop at stdin:13
type 'quit;' to quit to outer loop
brk>