I-Calculator yokujikelezisa
Iqoqa inani kunoma yiliphi inani lezindawo zesibalo, phezulu noma phansi.
Iziphetho zivuselelwa uma ubhala.
Malunga nale khadi
A rounding calculator rounds a number to a chosen number of decimal places (or significant figures) and shows four results side by side: the standard nearest-value rounding, always-up (ceiling), always-down (floor), and truncation, so you can compare every option at once.
Standard rounding looks at the digit just past the cut-off — 5 or more rounds up, less than 5 rounds down — so 3.14159 to two decimal places is 3.14. The other columns force a direction: for 2.673 the nearest and floor both give 2.67 while the ceiling gives 2.68, and truncation simply drops the extra digits to 2.67 without rounding. Switching the mode to significant figures counts meaningful digits from the first non-zero one instead, and a negative number of places rounds to the left of the point, so 3457 to −2 places becomes 3500.
Rounding matters for money, measurements, reporting to a sensible precision, and avoiding false accuracy in results. Seeing nearest, up, down and truncated together makes it clear how much a value shifts depending on which rule you apply.
Imibuzo ebuzwa kaningi
Ukuphi ukujikeleza kosuku lokushaya isibalo kuya endaweni yeshumi?
Bona inani elidlulele ku-cut-off: 5 noma ngaphezulu okujikelezayo phezulu, ngaphantsi kwe-5 okujikelezayo ngezansi. 3.14159 endaweni ezimbili yi-3.14.
Yini okwenziwa yinombolo e negalelo yezindawo zesibalo?
Ijikelezisa ekhohlo kwengxenye yeshumi: -1 ijikelezisa ku-10 ephakathi, -2 ku-100 ephakathi. 3457 kuya -2 izindawo yi-3500.
Yini ushintsho phakathi kokujikeleza phezulu nokujikeleza ngezansi?
Ukujikeleza phezulu (i-ceiling) nsuku zonke kuhamba ku-value enkulu futhi kujikeleza ngezansi (i-floor) kuncane, ngenkathi okuncane kuthatha okuncane. Ku-2.673 endaweni ezimbili, okuncane nokuncane kunikeza 2.67 kodwa phezulu kunikeza 2.68.
Yini okubonisa imiphumela eqoshiwe?
Icima ama-digits angaphezu kwendawo oyikhethile ngaphandle kokujikelezisa ngaso sonke isikhathi. 2.673 okutholwe iziqongo ezimbili zesibalo yi 2.67, nakuba ukujikelezisa okude kunikeza 2.67 lapha futhi 2.678 kuzotholwe ku 2.67 ngenkathi kujikelezisa ku 2.68.
Ngizoyijikelezisa kanjani inani elibalulekile endaweni yezindawo ezingu-10?
Ushintshe indlela kusuka endaweni yeshumi kuya kumanani abalulekile. Ukucaciswa kwe-3 kugcina ama-digits amabili okuqala abalulekile, ngakho-ke 0.0045213 kwenziwa 0.00452.
Ingabe ukujikeleza phezulu kungenza inani likhule?
Kumanani a positif kuphela. Ukujikelezisa phezulu kusho ukujikeleza phezulu ku-positive infinity, ngakho-ke -2.7 kujikeleziswe phezulu kunombolo ephelele yi- -2, okuwubukhulu, hhayi okuncane.
API — sebenzisa le calculator kusuka kukhodi
Nquma le calculator njenge JSON evulekile yendawo yokuqeda - akukho isithonjana esidingekayo. Thumela amaxabiso endawo ngezansi njengezilungiselelo zombuzo noma i-JSON. Noma yini ongayishiya isebenzisa iphutha elifanayo elifakwe ngaphambili lekhasi; ipharamitha engaziwa yi-400, ayikho i-zero emnyama. Funda i-API egcwele →
Ingxenye yendawo
GET https://calculator.free/api/v1/rounding/curl
curl "https://calculator.free/api/v1/rounding/?number=3.14159&places=2&mode=decimals"JavaScript fetch()
const r = await fetch(
"https://calculator.free/api/v1/rounding/?" + new URLSearchParams({
"number": "3.14159",
"places": "2",
"mode": "decimals"
}));
const data = await r.json();
console.log(data.results);Izibalo ziyisilinganiso esisetshenziswa ukuqondisa kuphela, hhayi ukucebisa ngezimali, ukwelashwa noma ukukhokha.