variation

Combinatorics์—์„œ variation์€ ๋ถ„์‚ฐ์„ ๋œปํ•˜๋Š” ๊ฒƒ์ด ์•„๋‹™๋‹ˆ๋‹ค. Variation์ด๋ž€, ์ฃผ์–ด์ง„ ์ง‘ํ•ฉ์—์„œ ํŠน์ • ๊ฐœ์ˆ˜์˜ ์š”์†Œ๋“ค์„ ๊ณ ๋ฅด๊ณ  ๋‚˜์—ดํ•  ์ˆ˜ ์žˆ๋Š” ์ด ๊ฒฝ์šฐ์˜ ์ˆ˜๋ฅผ ๋œปํ•ฉ๋‹ˆ๋‹ค.์ •ํ™•ํ•œ ๋ฒˆ์—ญ์„ ์ฐพ๊ธฐ๊ฐ€ ์–ด๋ ค์›Œ์„œ ๊ทธ๋ƒฅ ๋ฐ”๋ฆฌ์—์ด์…˜์ด๋ผ๊ณ  ๋ถ€๋ฅด๊ฒ ์Šต๋‹ˆ๋‹ค. ๋ฐ”๋ฆฌ์—์ด์…˜ v์˜ ๊ณต์‹์€ ๋‹ค์Œ๊ณผ ๊ฐ™์Šต๋‹ˆ๋‹ค.v = n^p where n = total number of elements, and p = the number of positions. ์˜ˆ๋ฅผ ๋“ค์–ด ๋‘๊ฐœ์˜ 0~9๊นŒ์ง€ ์ž…๋ ฅํ•  ์ˆ˜ ์žˆ๋Š” ์ˆซ์ž ์•”ํ˜ธ๋ฅผ ์ถ”์ธกํ•ด์„œ ๋งž์ถฐ์•ผ ํ•œ๋‹ค๊ณ  ํ•  ๋•Œ,n์€ 0~9๊นŒ์ง€ ์ด 10๊ฐœ๊ฐ€ ๊ฐ€๋Šฅํ•˜๋‹ˆ n = 10, p๋Š” ๋‘๊ฐœ์˜ ๊ฐ’์„ ๋งž์ถฐ์•ผํ•˜๋‹ˆ 2์ž…๋‹ˆ๋‹ค.์ฆ‰ v = 10^2 = 100์ด๋ฏ€๋กœ, ํ•ด๋‹น ์ด๋ฒคํŠธ์— ๋Œ€ํ•ด์„œ ๊ฐ€๋Šฅํ•œ ๋ฐ”๋ฆฌ์—์ด์…˜์€ ์ด 100๊ฐœ์ž…๋‹ˆ๋‹ค.  ์ด ..
Chan Lee
'variation' ํƒœ๊ทธ์˜ ๊ธ€ ๋ชฉ๋ก