Calculeuses de combinaison (nCr)
Konte fason pou chwazi r eleman nan n lè lòd la pa enpòtan.
Rezilta yo mete ajou pandan w ap ekri.
Atik sa 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 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)!).The formula is nCr = n! / (r! × (n − r)!).The formula is nCr = n! / (r! × (n − r)!).The formula is nCr = nCr.CombinationsCombinationsCombinationsCombinationsCombinationsCombinationsCombinationsCombinationsCombinationsCombinationsCombinationsCombinationsCombinationsCombinationsCombinationsCombinationsCombinationsCombinationsCombinationsCombinationsCombinationsCombinationsCombinationsCombinationsCombinationsCombinationsCombinationsCombinationsCombinationsCombinationsCombinationsCombinationsCombinationsCombinationsCombinationsCombinationsCombinationsCombinationsCombinationsCombinationsCombinationsCombinationsCombinationsCombinationsCombinationsCombinationsCombinationsCombinationsCombinationsCombinationsCombinationsCombinationsCombinationsCombinationsCombinationsCombinationsCombinationsCombinationsCombinationsCombinationsCombinationsCombinationsCombinationsCombinationsCombinationsCombinationsCombinationsCombinationsCombinationsCombinationsCombinationsCombinationsCombinationsCombinationsCombinationsCombinationsCombinationsCombinationsCombinationsCombinationsC
Kesyon ki poze souvan
Ki sa ki se fòmil konbinezon an?
nCr = n! / (r! × (n − r)!). Pou 10 atik pran 3 nan yon tan: 120 gwoup diferan.
Poukisa nCr pi piti pase nPr?
Konbinezon yo pa pran an kont lòd, se konsa chak gwoup ki pa òganize koresponde ak r! permutasyon òganize. Se poutèt sa nCr = nPr ÷ r!.
Ki lè mwen dwe itilize yon konbinezon?
Si yon moun pa gen yon pwopriyete, li ka gen yon pwopriyete, yon pwopriyete ki pa gen yon pwopriyete, yon pwopriyete ki gen yon pwopriyete, yon pwopriyete ki pa gen yon pwopriyete, yon pwopriyete ki pa gen yon pwopriyete.
Ki sa ki se yon koefisyan binòm?
Li se yon lòt non pou nCr, valè "n chwazi r" ki parèt nan teorem binòm lan ak fòme entrées yo nan triangle Pascal.
Ki sa ki nC0 oswa nCn?
Se konsa, yon moun ka chwazi yon sèl bagay, men li pa ka chwazi tout bagay.
Èske zouti sa a montre tou permutasyon?
Wi, li montre nPr = nCr × r! ansanm ak konbinezon an pou ou ka konpare kont yo ki te òganize ak ki pa te òganize.
API — itilize sa a calculateur soti nan kòd
Apèl sa a calculateur kòm yon gratis JSON pwent-de-fini - pa gen okenn kle ki nesesè. Envoye valè jaden anba a kòm paramèt kesyonè oswa JSON. Li dokiman API a an antye →
Endpoint
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);Rezilta yo se estimasyon pou kòmandman jeneral sèlman, pa finansye, medikal oswa konsèy taks.