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spatial
空间计量经济学常用的casetti_models、far_models、gmm_models、gwr_models、sac_models、sar_models等多种模型源代码(Multiple models of the used spatial econometrics casetti_models, far_models gmm_models gwr_models sac_models sar_models source code)
- 2012-11-22 16:06:29下载
- 积分：1
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cordic_1-0
在通訊系統中常見到的cordic，是個用很少複雜度就能實現三角函數的電路，檔案中有C語言的CORDIC程式(In the communication system common to cordic, is a little complex to use trigonometric functions will be able to realize the circuit, the file has C language program CORDIC)
- 2009-02-15 05:19:59下载
- 积分：1
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main
Concert c++ example of facility location problem. C++ concert technology is a registered trademark of ILOG CPLEX
- 2009-03-05 08:56:13下载
- 积分：1
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singnui
BP神经网络的整个训练过程,matlab编写的元胞自动机，独立成分分析算法降低原始数据噪声。( The entire training process BP neural network, matlab prepared cellular automata, Independent component analysis algorithm reduces the raw data noise.)
- 2016-09-15 11:20:27下载
- 积分：1
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chazhi
各种插值算法，高斯插值算法，线性插值算法，牛顿插值法，哈米特矩阵插值算法(Various interpolation algorithm, the Gaussian interpolation algorithm, linear interpolation algorithm, Newton interpolation, Hammett matrix interpolation algorithm)
- 2012-09-03 18:37:48下载
- 积分：1
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FFT
提供函数能进行1维2维的FFT，输入输出的序列长度应为2的整数次方倍(Provides functions can be one-dimensional two-dimensional FFT, sequence length input and output should be an integer power of 2 times)
- 2014-01-07 22:10:34下载
- 积分：1
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Map-projection
1、根据所给的中国版图数据
绘制显示基于北京54坐标系的经纬度数据
编写兰勃特投影转换程序，转换上述数据，并显示
编写墨卡托投影转换程序，转换上述数据，并显示
同时，要绘制相对应的经纬网格，网格间距5度
2、根据所给的世界版图数据
绘制显示基于WGS84坐标系的经纬度数据
编写墨卡托投影转换程序，转换上述数据，并显示
计算北京(116.4，39.8)到巴黎(2.2, 48.52)的大圆轨迹，并显示
同时，要绘制相对应的经纬网格，网格间距5度(1, according to the Chinese territory given display data drawn based on latitude and longitude data write Beijing 54 coordinate system Lambert projection conversion process, the conversion of the data, and displays the write Mercator projection conversion process, the conversion of the data, and display the same time, Draw the corresponding latitude and longitude grid, the grid spacing of 5 degrees 2, according to the world map rendering display data written to the Mercator projection based on latitude and longitude data conversion program WGS84 coordinate system, the conversion of the data, and displays the calculation Beijing (116.4, 39.8) to Paris (2.2, 48.52) the great circle track and display the same time, to draw the corresponding latitude and longitude grid, the grid spacing of 5 degrees)
- 2015-12-08 21:51:30下载
- 积分：1
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zhaomingdagonglvfaguanerjiguan
根据传热理论, 建立了大功率发光二极管的有限元模型. 选择了4 种键合材料( 高导热导电
银胶、纳米银焊膏, 大功率芯片键合胶、Sn70Pb30) , 4 种基板材料( Al2O3、A lN、A-l SiC、铜钼合金) .
采用ANSYS 有限元热分析软件进行了温度场仿真, 得到了大功率发光二极管封装材料的最优选
择. 研究了基板厚度、芯片输出功率及外接热沉时对发光二极管结温的影响.(Heat transfer theory, the finite element model of the high-power light-emitting diode. Choose four kinds of bonding material (high thermal conductive silver glue, nano-silver paste, high-power chip bonding glue Sn70Pb30) substrate material ( Al2O3, A lN, Al SiC, copper molybdenum alloy). temperature field simulation using ANSYS finite element thermal analysis software, the optimal choice of high-power light-emitting diode packaging materials. substrate thickness, chip output power and external heat Shen light-emitting diode junction temperature.)
- 2012-10-25 13:22:30下载
- 积分：1
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Laguerre-fitting
基于Laguerre多项式的拟合程序，可以控制多项式的结束，以及变量alpha。(Based on Laguerre polynomial fitting procedure, you can control the end of polynomials, and variable alpha.)
- 2014-01-02 21:43:58下载
- 积分：1
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非线性振动
非线性振动.pdf 刘延柱编写
恢复力与位移不成正比或阻尼力不与速度一次方成正比的系统的振动。尽管线性振动理论早已相当完善,在工程上也已取得广泛和卓有成效的应用，但在实际问题中，总有一些用线性理论无法解释的现象。一般说，线性模型只适用于小运动范围，起出这一范围，按线性问题处理就不仅在量上会引起较大误差，而且有时还会出现质上的差异，这就促使人们研究非线性振动。(Nonlinear Vibration. Compilation of PDF Liu Yanzhu)
- 2020-11-23 20:09:34下载
- 积分：1
