Kuzungulira Calculator
Kuzungulira idadi ku malire a decimal, pamwamba kapena pansi.
Zithunzizi zimasintha monga momwe mumalemba.
Zachidule
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.
Mafunso ofunsidwa nthawi zambiri
Kodi kuzungulira kwa decimal zigawo zimagwira ntchito bwanji?
Onani digito yopita kumapeto kwa malire: 5 kapena zambiri zimayenda mpaka, pang'ono kuposa 5 zimayenda pansi. 3.14159 ku malo awiri ndi 3.14.
Kodi ndi chiyani kukana mnda wa decimal malo kuchita?
It rounds to the left of the decimal point: −1 rounds to the nearest ten, −2 to the nearest hundred. 3457 to −2 places is 3500.
Kodi pali kusiyana kotani pakati pa kuzungulira mpaka pamwamba ndi kuzungulira pansi?
Kuzungulira (ceiling) nthawi zonse kumayenda ku tanthauzo lalikulu komanso kuzungulira pansi (floor) ku tanthauzo laling'ono, pomwe kusiyana kwa kutalika kumasankha kusiyana kwa kutalika. Pofuna 2.673 ku malo awiri, kusiyana kwa kutalika ndi pansi kumapatsa 2.67 koma kusiyana kwa kutalika kumapatsa 2.68.
Kodi zotsatira zosawerengeka zikusonyeza chiyani?
2.673 yofupikitsidwa mpaka maziko awiri a decimal ndi 2.67, ngakhale kuti kuzungulira kozungulira kumapatsanso 2.67 pano ndipo 2.678 idzafupikitsidwa mpaka 2.67 pamene kuzungulira ku 2.68.
Kodi ndingatani kuti ndizizungulira mpaka ku zigawo zofunika kwambiri m'malo mwa zigawo za decimal?
Kusintha njira kuchokera pamalo a decimal kupita ku zigawo zofunika. Kusintha kwa 3 kumasunga zigawo zitatu zofunika, choncho 0.0045213 imakhala 0.00452.
Kodi kuzungulira mpaka nthawi zonse amachititsa idadi wamkulu?
Kuzungulira kumatanthauza kupita ku chiyambi cha malire, choncho -2.7 kuzungulira mpaka ku int ndi -2, yomwe ndi yayikulu, si yaying'ono.
API — kugwiritsa ntchito izi calculator kuchokera code
Kuti mudziwe zambiri, pitani ku www.json.org/json.html. Kuti mudziwe zambiri, pitani ku www.json.org/json.html. Chomweko chilichonse chimene mumasiya chimagwiritsa ntchito mfundo yoyamba yomweyi yomwe tsambali limagwiritsa ntchito; mfundo yosadziwika ndi 400, siyiyenera kukhala zero yosadziwika. Onani zonse API docs →
Chithunzi
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);Zimenezi ndi zowerengera zokhudzana ndi malangizo amtundu uliwonse, si zokhudzana ndi ndalama, zamoyo kapena zokhudzana ndi ndalama.