Калкулятор комбинаций (nCr)
Ing kasus iki, nilai-nilai sing dibutuhake kanggo ngitung nilai-nilai sing ora dibutuhake.
Hasilne bakal dioptimalake nalika sampeyan ngetik.
Ngenai kalkulator iki
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
Takon-takon kang kerep diajukake
Apa formula kombinasi?
100
Apa tegese NCR luwih cilik tinimbang NPR?
Kombinasi ngabaikan urutan, saengga saben kelompok sing ora diurutke cocog karo r! permutasi diurut. Iki sebabe nCr = nPr ÷ r!
Kapan aku kudu nggunakake kombinasi?
Nalika urutan henteu penting: lotre, kartu tangan, milih komite, atanapi pilihan mana waé dimana grup anu diitung, henteu disusun.
Apa koefisien binomial?
Éta ngaran séjén pikeun nCr, nilai "n milih r" anu muncul dina teorema binomial sareng ngabentuk entri segitiga Pascal.
Apa tegese nC0 utawa nCn?
Dua-duana sami 1 — aya hiji cara milih teu aya, sarta hiji cara milih sadaya.
Apa piranti iki uga ngasilake permutasi?
Ya. Ieu ngagambarkeun nPr = nCr × r! dibarengan ku kombinasi supados anjeun bisa ngabandingkeun jumlah anu disusun sareng anu teu disusun.
API — gunakake kalkulator iki saka kode
Ngadongékeun kalkulator ieu minangka titik akhir JSON bébas — teu peryogi kunci. Kirim nilai medan di handapeun minangka parameter pitakonan atawa JSON. Waca dokumen lengkap API →
Tampilan
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);Hasilna nyaéta perkiraan pikeun pituduh umum, henteu saran finansial, médis atanapi pajak.