Kalkulatur tal-Kombinazzjoni (nCr)
Għadd il-modi biex jagħżlu r oġġetti minn n meta l-ordni ma jimpurtax.
Riżultati aġġornament kif inti tip.
Dwar din il-kalkulatur
combination counts how many ways you can choose r items from a set of n when order does not matter — picking the same group in a different sequence counts once. This calculator returns the exact count, the formula, and the matching number of ordered arrangements (nPr) for comparison. Choosing none or all gives nC0 = nCn = 1, and as with permutations, r cannot exceed n. A combination counts how many ways you can choose r items from a set of n when order does not matter — picking the same group in a different sequence.Combinations answer "how many groups?" —The formula is nCr = n! / (r! × (n − r)!). For 10 items taken 3 at a time there are 120 distinct groups.Combinations answer "how many groups?" —The formula is nCr = n! / (r! × (n − r)!). For 10 items taken 3 at a time there are 120 distinct groups.Combinations answer "how many groups?" — the odds in a lottery, the number of possible five-card poker hands, ways to pick a committee, or terms in Pascal's triangle.Combinations answer "how many groups?" — the odds in a lottery, the number of possible five-card poker hands, ways to pick a committee, or terms in Pascal's triangle.Combinations answer "how many groups?" — the odds in a lottery, the number of possible five-card poker hands, ways to pick a committee, or terms in Pascal's triangle.Combinations answer "how many groups?" — the odds in a lottery, the number of possible five-card poker hands, ways to pick a committee, or terms in Pascal's triangle.Combinations answer "how many groups?" — the odds in a lottery, the number of possible five-card poker hands, ways to pick a committee, or terms in Pascal's triangle.Combinations answer "how many groups?" — the odds in a lottery, the number of possible five-card poker hands, ways to pick a committee, or terms in Pascal's triangle.Combinations answer "how many groups?" — the odds in a lottery, the number
Mistoqsijiet li jsiru ta' spiss
X'inhi l-formula kombinazzjoni?
nCr = n! / (r! × (n − r)!). Għal 10 oġġetti meħuda 3 f’daqqa: 120 grupp differenti.
Għaliex huwa nCr iżgħar minn nPr?
Il-kombinazzjonijiet jinjoraw l-ordni, għalhekk kull grupp mhux ordnat jikkorrispondi għal r! permutazzjonijiet ordnati. Dan huwa għaliex nCr = nPr ÷ r!.
Meta għandi nuża kombinazzjoni?
Meta l-ordni ma jimpurtax: numri tal-lotterija, naħa tal-karti, l-għażla tal-kumitat, jew kwalunkwe għażla fejn il-grupp huwa dak li jgħodd, mhux l-arranġament tiegħu.
X’inhu koeffiċjent binomjali?
Huwa isem ieħor għal nCr, il-valur "n jagħżel r" li jidher fit-teorema binomjali u jifforma l-entrati tat-trijangolu ta' Pascal.
X'inhu nC0 jew nCn?
It-tnejn huma ugwali għal 1 — hemm mod wieħed biex tagħżel l-ebda, u mod wieħed biex tagħżel kollha minnhom.
Din l-għodda turi wkoll permutazzjonijiet?
Iva. Dan juri nPr = nCr × r! flimkien mal-kombinazzjoni sabiex tkun tista' tqabbel għadd ordnat u mhux ordnat.
API — uża din il-kalkulatur mill-kodiċi
Sejjaħ dan il-kalkulatur bħala punt aħħari JSON b'xejn — l-ebda ċavetta meħtieġa Ibgħat il-valuri tal-qasam hawn taħt bħala parametri tal-mistoqsija jew JSON. Aqra d-dokumenti sħaħ tal-API →
Punt aħħari
GET https://calculator.free/api/v1/combination/curl
curl "https://calculator.free/api/v1/combination/?n=10&r=3"JavaScript fetch()
const r = await fetch(
"https://calculator.free/api/v1/combination/?" + new URLSearchParams({
"n": "10",
"r": "3"
}));
const data = await r.json();
console.log(data.results);Ir-riżultati huma stimi għal gwida ġenerali biss, mhux parir finanzjarju, mediku jew tat-taxxa.