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Fourier变换应用小记

Published at: 2013-10-07   |   Reading: 1387 words ~3min
大整数问题一直很头疼,采用乘法原理的结果复杂度为$O(n^{2})$,最近看傅里叶变换有尝试用傅里叶变换加以改进。 设 $$ a=(a_{N-1}a_{N-2}…a_{1}a_{0}){10}=a{N-1}10^{N-1}+…+a_{0}10^{0}] [b=(b_{N-1}b_{N-2}…b_{1}b_{0}){10}=b{N-1}10^{N-1}+…+b_{0}10^{0} $$ 两个式子的乘积 $$
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模版链队实现

Published at: 2013-10-05   |   Reading: 879 words ~2min
队列作为允许在前段删除和后端插入得线性表,和栈类似,是一种操作受限制得线性。进行插入操作的端称之为队尾,进行删除操作的端称之为队头。队列中没
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模版链栈实现

Published at: 2013-10-04   |   Reading: 746 words ~2min
栈只具备入栈和出栈的性质,实现起来较为简单,其本质还是链表,只不过限制了任意节点的访问权限,因此栈不具备迭代器的功能。代码中注释了一个迭代器
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从圆锥体积谈起

Published at: 2013-10-03   |   Reading: 2265 words ~5min
本文希望通过下面这个简单易懂的例子来阐述数学家们为何要将流形理论定义的晦涩以及流形背后的深刻含义,文中一些关键性的概念附上了wikipedi
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《乔布斯》观后感

Published at: 2013-10-02   |   Reading: 1071 words ~3min
美国立国至今二百余年,The chief business of america is business,商业繁荣至今,有种东西居功至伟,也就是所谓的“Entrepreneurship”。影
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Changkun Ou

Changkun Ou

Stop Talking. Just Coding.

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