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chapter6
于慧敏信号与系统第二版第六章部分习题的matlab代码... (In the second edition of the system Huimin Xin No. Part VI Exercises matlab code ...)
- 2010-06-04 11:02:20下载
- 积分:1
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电力系统机组组合分段线性优化
说明: 电力系统短期运行模拟程序,机组组合程序,以日为调度周期,ieee14节点标准系统为算例。(Power system short-term operation simulation program, unit combination program, daily scheduling cycle, IEEE 14 node standard system as an example.)
- 2021-03-29 21:09:11下载
- 积分:1
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MATLAB_rmjc
本资料详实的讲解了matlab的基础知识及编程方法,是初学者学习的好资料(this informative presentation of the basic knowledge of Matlab programming method and is a good beginners learning information)
- 2007-01-12 21:55:22下载
- 积分:1
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contact-lenses
some dataset for weka some dataset for weka
- 2014-09-12 03:05:59下载
- 积分:1
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haarwavelet
transformasi wavelet haar in matlab, demo
- 2015-04-09 01:23:40下载
- 积分:1
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DateConvert
DateConvert:简单而快速的日期转换
DateConvert转换DATESTR(0)格式的日期向量或序列号和日期向后。
Matlab的DATENUM,DATEVEC和DATESTR接受各种不同意见,但结果他们是缓慢的。如果输入格式正是众所周知,转换可以更快:
DATENUM( 17 - 10 - 2009 11时08分23秒 ):2.97秒
DateConvert( 17 - 10 - 2009 11时08分23秒 , 号码 ):0.039秒
=>“1.3%(1000环,1.5GHz的奔腾- M的,利用Matlab 7.7)
DateConvert不*不*验证作为Matlab的日期函数输入日期:
DATEVEC( 32 - 2 - 2008 25:62:63 )的答复[2008 3 4 2 2 7]
DateConvert( 32 - 2 - 2008 25:61:67 , 载体 )的答复[2008 2 32 25 61 67]!
因此DateConvert几乎微不足道,但对速度进行了优化。我需要时间排序200 000邮票,并从217个减少到11秒的时间。
请运行单元测试TestDateVec检查的有效性和速度。
测试:利用Matlab 6.5,7.7,7.8,winxp的,32位。
纯Matlab代码,所以兼容性的MacOS,Linux操作系统,64位预期。
英语月份名称是必要的。(DateConvert: Simple but fast date conversion
DateConvert converts the DATESTR(0) format to a date vector or serial date number and backwards.
Matlab s DATENUM, DATEVEC and DATESTR accept a variety of inputs, but in consequence they are slow. If the input format is exactly known, the conversion can be much faster:
DATENUM( 17-Oct-2009 11:08:23 ): 2.97 sec
DateConvert( 17-Oct-2009 11:08:23 , number ): 0.039 sec
=> 1.3 (1000 loops, 1.5GHz Pentium-M, Matlab 7.7)
DateConvert does*not* validate the input date as Matlab s date functions:
DATEVEC( 32-Feb-2008 25:62:63 ) replies [2008 3 4 2 2 7],
DateConvert( 32-Feb-2008 25:61:67 , vector ) replies [2008 2 32 25 61 67] !
So DateConvert is nearly trivial, but optimized for speed. I needed it for sorting 200 000 time stamps and reduced the time from 217 to 11 sec.
Please run the unit-test TestDateVec to check validity and speed.
Tested: Matlab 6.5, 7.7, 7.8, WinXP, 32bit.
Pure Matlab code, so compat)
- 2010-07-05 11:59:46下载
- 积分:1
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4
说明: this module introduces the wavelet
- 2009-10-24 17:30:33下载
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MATLAB_SYJC
说明: matlab教程,里面有许多有用的方法.(matlab tutorial, there are many useful ways.)
- 2008-11-27 16:14:59下载
- 积分:1
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BEM2
基于matlab边界元的经典算法。(Classical algorithm matlab Boundary Element. Vertical ground electrode radius r = 0.05m, length l = 0.5m vertical grounding on potential V0 = 30V, the Boundary Element Method radially outwardly eight-point potential.)
- 2013-01-29 21:03:25下载
- 积分:1
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MPAM4
BCH编解码,能显示编译前后的码型变换,成功运行(BCH codecs, can show a pattern transformation compiled before and after successful operation)
- 2013-12-16 17:50:52下载
- 积分:1