Many parts work with explorer, but some do not (due to bugs in
explorer). For example, zooming the size of the table, picking groups
by order, and picking groups from the misc. list do not work in explorer.
Instructions
Select a group.
Click on elements from the special left column to select/deselect them.
Explore subgroups generated by a set of elements by selecting them
and then clicking on Generate Subgroup
Explore orders of elements by selecting one element, and then
generating its (cyclic) subgroup.
Explore conjugacy classes by selecting an element, and then clicking
to Close Under Conj.
Generate normal subgroups by combining Generate Subgroup and
Close Under Conj.
When you Generate Subgroup, the group table is
reorganized by left coset, and colored accordingly. You should
be able to see if the subgroup is normal, and the group table
for the quotient group.
Notes on Group Notations
One can enter an abitrary product of cyclic groups using the
"Zn1 x Zn2 x ..." type. Enter the sizes of the factors as a
comma-separated list when the blank is offered.
A group "Aff(Z_n)" is the set of affine functions
ax+b where a and b are taken in
Zn, and a relatively prime to
n. It is a group under composition.
For dihedral groups, a special notation is used for reflections
when n=3 or 4 (representing the line being reflected over).
For larger dihedral groups, vj is the
reflection which sends
vertex 1 to vertex j.