subgroup of a particular point

what does subgroup of a particular point mean?? and how can I find subgroups?

[Walter Roberson]

Could you give us some context?

[wa]

i have a image and i have selected a particular point in it from that point i have to make subgroup of those points

[Walter Roberson]

Could you give us a reference to a paper that has those kinds of instructions? Or if it is an assignment, please post the paragraph that talks about subgroups.

There are a lot of different meanings for "subgroup" and it is not clear which meaning applies.

[wa]

please find the attached file

Answer 1

[Walter Roberson]

If I understand correctly, where it says

3. Generate the celestial body subgroup of G

that means,

3. Generate the celestial body subgroup of G by performing steps 4 to 9

That is, the three places in the algorithm that talk about generating subgroups are not themselves telling you to take a particular action, and are instead headers describing the purpose of taking the actions of the following for loop.

[wa]

no, 3 point in algo 1 is basically making subgroups corresponding to centre G also they don't mentioned what celestial distribution means