Uburyo bwacu bushyira imbere ukuri kw'amafomula, ibyafashwe nk'ukuri bigaragara, ingero zishobora gusubirwamo n'imipaka isobanutse.
Ibisobanuro bya buri kalikulateri birimo amakuru yinjizwa, ifomula, ibisubizo, amategeko yo kugenzura, urugero n'ibisobanuro. Ibizamini byikora bigenzura ibisubizo by'ingenzi, ibihe agaciro ari zeru, amakuru atemewe, kwegeranya imibare n'imipaka y'ingenzi.
Kalikulateri z'imari zikoresha amafomula asanzwe y'agaciro k'amafaranga mu gihe no kwishyura inguzanyo. Ibisubizo ntibibariramo amafaranga y'inyongera, imisoro cyangwa impinduka z'isoko keretse igikoresho kibigaragaza, kandi si inama z'imari.
Ibikoresho by'ubuzima bikoresha amafomula yo gusuzuma azwi cyane, ariko ntibishobora kubariramo buri kintu cyihariye cy'umuntu. Ibisubizo ni amakuru gusa kandi si inama cyangwa isuzuma ry'ubuvuzi.
Ibigereranyo by'ibikoresho bikoresha ubuso butwikira n'ibipfa ubusa byavuzwe. Imiterere nyayo, ibisobanuro by'igicuruzwa n'ingano zo gutumiza z'utanga ibikoresho bigomba kugenzurwa mbere yo kugura.