[README-ja] [English] 代数パッケージ Version: 0.72 (2006.09.16) Author: 原 信一郎 (sinara@blade.nagaokaut.ac.jp) これは１変数あるいは多変数の多項式を計算するためのライブラリです。 0. 最初の一歩 最も簡単な利用法は require "algebra" として、計算を始めることです。 require "algebra" x = Polynomial(Integer, "x").var puts( (x+1)**7 ) #=> x^7 + 7x^6 + 21x^5 + 35x^4 + 35x^3 + 21x^2 + 7x + 1 puts( (x**7 + 7*x**6 + 21*x**5 + 35*x**4 + 35*x**3 + 21*x**2 + 7*x + 1).factorize ) #=>
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sirocco 2011/02/07
すごいな。因数分解とか出来ちゃう。数学は苦手で分からないけど・・・。- ruby
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