December 2016
Intermediate to advanced
440 pages
9h 44m
Japanese
Content preview from アルゴリズムクイックリファレンス 第2版
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2.4
性能分類
■
23
1
変数方程式の解（すなわち、
f(x)
＝
0
を満たす
x
の値）を求める。
f(a)
と
f(b)
の符
号が異なる、すなわち
1
つが正、もう
1
つが負の
2
つの値
a
と
b
から始める。各ステッ
プで、二分法は、範囲
[a, b ]
の中点
c
を計算して二分割し、どちらの半分に解があ
るかを決定する。各回で、
c
が解を近似し、誤差は半減する。
f(x)
＝
x*sin(x)
−
5*x
−
cos(x)
の解を求めるには、
a
＝−
1
と
b
＝
1
から開始する。
表2-2に示されるように、
f(x)
＝
0
の解
x
＝−
0.189302759
に収束する。
表2-2 二分法
n a b c f(c)
1 –1 1 0 –1
2 –1 0 –0.5 1.8621302
3 –0.5 0 –0.25 0.3429386
4 –0.25 0 –0.125 –0.3516133
5 –0.25 –0.125 –0.1875 –0.0100227
6 –0.25 –0.1875 –0.21875 0.1650514
7 –0.21875 –0.1875 –0.203125 0.0771607
8 –0.203125 –0.1875 –0.1953125 0.0334803
9 –0.1953125 –0.1875 –0.1914062 0.0117066
10 –0.1914062 –0.1875 –0.1894531 0.0008364
11 –0.1894531 –0.1875 –0.1884766 –0.0045945
12 –0.1894531 –0.
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.