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tricurv.tar
Function to calculate the principal curvatures on a triangular mesh. Approximations of curvature are based on local (N=1) neighborhood elements and vertices.
Note: Directions of curvatures aren t calculated appropriately. Will post an updated version once this is implemented.
Note that calculations at vertices with few adjacent triangles, and hence few adjacent vertices, are expanded to a greater neighborhood.
Reference:
1) Chen and Schmitt (1992) Intrinsic surface properties from surface triangulation
2) Dong et al. (2005) Curvature estimation on triangular mesh, JZUS
This code makes use of routines: buildInverseTriangualtion.m & removeDO.m
initially written by: David Gringas. He is gratefully acknowledged
- 2010-12-13 23:52:29下载
- 积分：1
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Sub_Height2AirQuality
理想大气数据计算密度 压强 温度，0-40km以内高度(Ideal atmospheric pressure temperature data density within ,0-40km height)
- 2013-07-19 15:10:31下载
- 积分：1
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newton-raphson
Newton-Raphson method for all real roots of the polynomial
计算多项式实根的Newton-Raphson算法源代码(nonlinear fitting)
- 2011-10-07 01:41:23下载
- 积分：1
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MATLAB-gui-voice-
说明： 关于matlab方面对语音进行信号处理方面的内容(Matlab voice on the terms of the content of the signal processing)
- 2011-04-10 14:11:41下载
- 积分：1
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Boost_Converter
说明： 升压转换器是一种DC / DC电源转换器，可将电压从其输入（源）升至其输出（负载）。在连续导通模式下（流经电感的电流永远不会降为零），升压转换器的理论传递函数为：
占空比在哪里0.5
在此示例中，转换器从250 V电源馈送RC负载，并且PWM频率设置为31 kHz。
模拟
运行仿真并观察示波器上的波形。确认负载电压（Vout）的平均值非常接近理论值：Vout = 250 /（1- 0.5）= 500V。(A boost converter is a DC/DC power converter which steps up voltage from its input (source) to its output (load). In continuous conduction mode (current through the inductor never falls to zero), the theoretical transfer function of the boost converter is:
where is the duty cycle.0.5
In this example, the converter is feeding an RC load from a 250 V source and the PWM frequency is set to 31 kHz.
Simulation
Run the simulation and observe waveforms on Scope. Verify that the mean value of the load voltage (Vout) is very close to the theoretical value of: Vout = 250 / (1 - 0.5) = 500 V.)
- 2020-03-22 20:41:56下载
- 积分：1
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tuxiangshuiyin
利用二维离散小波，在一幅图像中嵌入水印，并对水印图像进行水印的提取和检测。(Using two-dimensional discrete wavelet, an image embedded in the watermark and image watermark extraction and detection.)
- 2010-11-25 21:29:10下载
- 积分：1
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youhuasuanfa
经典的模遗传算法的合集，是我在参加数学模型大赛时收集的，比较有用(classic mode GA universe, I was participating in the Mathematical Model Competition collected, more useful)
- 2007-05-30 09:33:10下载
- 积分：1
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GrToolbox
Graph Theory Toolbox for Matlab
- 2015-02-06 17:09:11下载
- 积分：1
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LMD
LMD算法实现，学习局域均值分解的可以参考下(LMD algorithm, learning the local mean decomposition can refer)
- 2015-04-18 16:05:09下载
- 积分：1
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A3111
2015年全国大学生数学建模大赛B题高程图处理源代码(college math test of 2015 for B ticket of picture one)
- 2014-11-09 21:59:44下载
- 积分：1
