1. 对定义域为全体 $n$ 阶矩阵的函数 $f: \bbR^{n\times n}\to \bbR$, 如果 $\dps{\cfrac{\p f}{\p a_{ij}}}$ 对 $A$ 中每个元素 $a_{ij}$ 都存在, 则记 $$\bex \n_A f(A)=\sex{\cfrac{\p f...
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其他好文 时间:
2014-07-22 22:57:56
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241
Suppose you are given a string and you want to count how many times each letters appears. There are several ways you do it:You could create 26 variabl...
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其他好文 时间:
2014-07-14 21:55:02
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247
用matlab 画图时,发现线太多,生成的图例,遮盖了曲线。于是想画成多个图例,然后可以自由拖动。
废话不多说,1)代码; 2)效果。
%%%%%%%%%%%% Code:
figure
%% ---- plot for maxtries performance
set(0,'DefaultTextFontName','Times',...
'DefaultTex...
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其他好文 时间:
2014-07-12 21:03:59
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2602
BACKGROUND OF THE INVENTION 1. Field of the InventionThe present invention relates generally to heterogeneous computer systems.2. Background ArtComput...
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其他好文 时间:
2014-07-12 14:44:24
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296
Given a sorted array that has been rotated serveral times. Write code to find an element in this array. You may assume that the array was originally s...
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其他好文 时间:
2014-07-11 23:02:53
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254
一、BubbleSort and XListview1、BubbleSort(1)analysistraverse、compare、exchange、cycle、optimizestrategyloop outside times n-1loop inside times n-i-1 it redu...
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其他好文 时间:
2014-07-09 15:28:14
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185
$\bf 摘要$:本文给出了兰州大学 2011 年数学分析考研试题的一个参考解答.$\bf 关键词$:兰州大学;数学分析;考研试题1计算题 ($6\times 10'=60'$).(1)求极限 $$\bex \lim_{x\to 0}\frac{e^{x-\sin x}-e^\frac{x^3}{6...
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其他好文 时间:
2014-07-07 11:41:20
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195
题目
Given an array of integers, every element appears three times except for one. Find that single one.
Note:
Your algorithm should have a linear runtime complexity. Could you implement it...
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其他好文 时间:
2014-07-01 06:23:24
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334
题目
Given an array of integers, every element appears three times except for one. Find that single one.
Note:
Your algorithm should have a linear runtime complexity. Could you implement it...
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其他好文 时间:
2014-06-30 19:23:18
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200
【题目】
Given an array of integers, every element appears three times except for one. Find that single one.
Note:
Your algorithm should have a linear runtime complexity. Could you implement it without using extra memory?
【题意】
给定一个整数以外,其中除了一个整数只出现一次以外...
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其他好文 时间:
2014-06-29 22:52:35
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246