“Mai jan hankali” na nufin jerin ƙididdiga ko ƙididdiga waɗanda ke bayyana ɗabi'ar tsayayyen tsari a ka'idar hargitsi. A ka'idar rikice-rikice, ana cewa tsarin yana da rudani idan yana da matukar damuwa ga yanayin farko, ma'ana ƙananan canje-canje a cikin yanayin farawa na iya haifar da sakamako daban-daban na tsawon lokaci.Mai jan hankali shine saitin dabi'u. cewa tsarin rudani yana ƙoƙarin motsawa zuwa ko "jawo." Mai jan hankali mai ruɗani yana nufin ƙayyadaddun tsarin motsi wanda tsarin ruɗani ke nunawa akan lokaci. Waɗannan sifofi na iya zama masu sarƙaƙƙiya da rashin daidaituwa, kuma suna iya bayyana bazuwar, amma a zahiri suna da ƙayyadaddun ƙayyadaddun ƙayyadaddun ƙayyadaddun ƙa'idodin lissafi. yanayin yanayi, yanayin yawan jama'a, da kuma halayen kasuwannin kuɗi. Nazarin abubuwan jan hankali na rudani ya haifar da zurfin fahimtar tsarin hadaddun tsarin kuma yana da aikace-aikace masu amfani a fannonin injiniya, kimiyyar lissafi, da tattalin arziki.