KOMBINATORIKA MASALALARI
Abstract
Kombinatorikada nima o‘rganiladi? Kombinatorik xarakterga ega bo‘lgan masalalarni mumkin bo‘lgan barcha variantlar sonini hisoblashda «nechta?» yoki «necha xil usulda?» kabi savolarga javob berish talab qilinadi. Ta’rif: Har qanday narsalardan tuzilgan va bir biridan shu narsalarning tartibi yoki o‘zi bilan farq qiluvchi to‘plamlar (gruppalar) birlashmalar (kombinatorika) deyiladi. Birlashmani tashkil etgan narsalar elementlar deyiladi. Birlashmalar (kombinatorika)da quyidagilar o‘rganiladi: o‘rinlashtirishlar, o‘rin almashtirishlar, gruppalashlar va binom formulasi [1].
References
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