Official Answer
Answer
Daidaitacce stacking (wuri) ya ƙunshi sanya maɓuɓɓugan ruwa a cikin juna don haka raƙuman ruwansu ya daidaita; wannan ya ninka nauyin $P$ don jujjuyawar $\delta$ iri ɗaya. Jigilar tari (Crest-to-Crest) ya haɗa da tattara maɓuɓɓugan ruwa don haka kololuwar ta taɓa; wannan ya ninka karkacewar $\delta$ akan kaya iri ɗaya $P$. A cikin hanyoyin da tauraron dan adam ke takurawa sararin samaniya, ana yawan amfani da jeri-jeri don cimma babban tafiya a cikin karamin sawun. Yana da mahimmanci a kiyaye mu'amala tsakanin maɓuɓɓugan ruwa masu tarin yawa; sau da yawa, ana sanya wanki na 'tsaka-tsaki' na bakin ciki a tsakanin su don tabbatar da kololuwar bazara daya ba su zamewa cikin kwaruruka na gaba ba, wanda zai ruguje tarin.
