Duba wurin da ke ƙasa sannan ka amsa tambayar daga baya a cikin harshe ɗaya kamar yadda wurin yake:  Passage: Ana amfani da ƙungiyoyi masu daidaituwa na ƙarshe kamar ƙungiyoyin Mathieu a cikin ka'idar coding, wanda kuma ana amfani da shi a cikin gyaran kuskuren bayanan da aka watsa, da kuma a cikin 'yan wasan CD. Wani aikace-aikace shine bambancin Galois ka'idar, wanda ke nuna alamun ayyuka da ke da anti-derivatives na nau'in da aka tsara, yana ba da ka'idojin ka'idar rukuni don lokacin da mafita na wasu bambance-bambance suke da kyau. Abubuwan halayyar geometric waɗanda suka kasance masu daidaito a ƙarƙashin ayyukan rukuni ana bincika su a cikin ka'idar (halayyar geometric) invariant.  Tambaya: Wane irin rukuni ne kungiyoyin Mathieu?
Ƙungiyoyin ƙayyadaddun ƙayyadaddun