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Description: 计算方法实验。自己做的
实 验3 梯形法求定积分值
【实验内容】
1、方法简介
复化梯形公式： ，
2、基本原理
设将求积区间[a，b]划分为n等分，步长 ，分点为xi＝a+ih，i=0，1，…，n。所谓复化求积法，就是先用低阶求积公式求得每个子段[xi，xi+1]上的积分值Ii，然后再将他们累加求和，用各段积分之和 作为所求积分的近似值。
3、使用说明
（1）本程序在windows xp + vc6.0完美运行，为了保证其正确，请在此环境下运行。
（2）变量说明
a：实变量，积分下界
b：实变量，积分上界
n：区间被分割数
y：实变量，积分结果
（3）子程序用于解实例
float f(float x)
{
float y
y=(float)cos(x)
return y
}
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Size: 62491 |
Author: 000 |
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Description: IH 补丁包 可以用于IHistorian的补丁。
Platform: |
Size: 28283290 |
Author: longzhigang |
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Description: 数据挖掘中的决策树生成的经典的see5软件的源代码。-Data Mining Tree Generation classic see5 the software's source code.
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Size: 77824 |
Author: 罗成 |
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Description: 计算方法实验。自己做的
实 验3 梯形法求定积分值
【实验内容】
1、方法简介
复化梯形公式： ，
2、基本原理
设将求积区间[a，b]划分为n等分，步长 ，分点为xi＝a+ih，i=0，1，…，n。所谓复化求积法，就是先用低阶求积公式求得每个子段[xi，xi+1]上的积分值Ii，然后再将他们累加求和，用各段积分之和 作为所求积分的近似值。
3、使用说明
（1）本程序在windows xp + vc6.0完美运行，为了保证其正确，请在此环境下运行。
（2）变量说明
a：实变量，积分下界
b：实变量，积分上界
n：区间被分割数
y：实变量，积分结果
（3）子程序用于解实例
float f(float x)
{
float y
y=(float)cos(x)
return y
}
-err
Platform: |
Size: 62464 |
Author: 000 |
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Description: IH 补丁包 可以用于IHistorian的补丁。-IH patch can be used to patch IHistorian.
Platform: |
Size: 28282880 |
Author: longzhigang |
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Description: FTB安装版 v1.3(虚拟形象) -ih
Platform: |
Size: 5447680 |
Author: ydx |
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Description: information hiding dct matlab
-information hiding
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Size: 204800 |
Author: liuzimao |
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Description: 这段代码主要是实现二阶理想高通滤波器，本段代码全部用MATLAB语言实现的。-This code is to achieve the ideal second-order high-pass filter, the above code to achieve the full use of the MATLAB language.
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Size: 1024 |
Author: 熊子东 |
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Description: 这是一个用HT46R22开发的电磁炉程序,本已经大量生产过-IH apption
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Size: 3072 |
Author: 吴样 |
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Description: visaul C++ book for beginners
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Size: 416768 |
Author: Anna |
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Description: Rosete flower - gdi sors kod koji crta cvet tj iz vise elipsi, zavisno koliko programer unese. pritom ih boji
ajd uzdravlje-Rosete flower- gdi sors kod koji crta cvet tj iz vise elipsi, zavisno koliko programer unese. pritom ih boji
ajd uzdravlje
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Size: 24576 |
Author: VladanSt |
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Description: stjdb,g wh ih iyca,i tduttf i tf -stjdb, g wh ih iyca, i tduttf i tf
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Size: 19456 |
Author: plcly |
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Description: U ovom radu su prikazana neka od moguć ih reš enja problema efikasne iluminacije SAT TV ofset
parabolič nih antena, pri upotrebi na WLAN frekvencijama od 2.4 GHz.-U ovom radu su prikazana neka od moguć ih reš enja problema efikasne iluminacije SAT TV ofset
parabolič nih antena, pri upotrebi na WLAN frekvencijama od 2.4 GHz.
Platform: |
Size: 1296384 |
Author: jojomoje |
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Description: U ovom radu su prikazana neka od moguć ih reš enja problema efikasne iluminacije SAT TV ofset
parabolič nih antena, pri upotrebi na WLAN frekvencijama od 2.4 GHz.-U ovom radu su prikazana neka od moguć ih reš enja problema efikasne iluminacije SAT TV ofset
parabolič nih antena, pri upotrebi na WLAN frekvencijama od 2.4 GHz.
Platform: |
Size: 925696 |
Author: jojomoje |
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Description: 用于破解pdf。功能强大。很实用。只有传一次的奇偶ih-hellonice tomettyou
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Size: 2589696 |
Author: 张庆 |
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Description: 作等距分划，Xi=-5+ih,h=10/n,i=0,1,……,n,并对Runge给出的函数y=1/(1+x2)作Lagrange插值，取n=10,20计算插值多项式Pn(x)在x=4.8处的误差，并作分析
用Romberg外推法计算圆周率Π=∫4/(1+X2)dx,要求绝对误差限小于0.5×10-8-For the equidistant partition, Xi =- 5+ ih, h = 10/n, i = 0,1, ... ..., n, and Runge' s function is given y = 1/(1+ x2) for the Lagrange interpolation, calculated taking n = 10,20 interpolation polynomial Pn (x) at x = 4.8 at the error, and an analysis method with Romberg extrapolation pi Π = ∫ 4/(1+ X2) dx, demand absolute error limit of small at 0.5 × 10-8
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Size: 92160 |
Author: 周中锋 |
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Description: 介绍了一种基于神经网络白化匹配滤波器的QRS 波检测方法。我们用神经网络白化匹配滤波器来处
理ECG 信号的低频成分, 模拟其非线性及非稳态的特性。处理后的信号中含有ECG 中大部分高频成分, 让其通过
一线性匹配滤波器来检测QRS 波及其位置。对于大噪声的ECG 信号, 在匹配滤波器后加差分滤波, 取平方及滑动
平均等处理, 提高检测正确率。使用这种方法我们对M IT?B IH 心电信号数据库中噪声比较大的105号数据进行的
处理, 检测正确率为9912 。作为对比, 用数字带通滤波器检测, 正确率为9718 。-Introduced a whitening matched filter based on neural network of the QRS wave detection. We use neural networks to handle the whitening matched filter low frequency ECG signal to simulate the nonlinear and non-steady state characteristics. Processed ECG signal contains most of the high frequency components, let through a linear matched filter to detect the QRS wave and position. For large noise the ECG signal after the matched filter plus differential filter, such as taking the square and the moving average processing, improve the detection accuracy. Using this method we have M IT?B IH noise ECG database of 105 large data processing, testing rate was 9912 correct. In contrast, detection with digital band-pass filter, the correct rate of 9718 .
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Size: 266240 |
Author: 罗朝辉 |
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Description: 连接IH 数据库和SOCKET 服务器。从IH中取出数据，发送给SOCKET服务端-link IH DataBase and Socket Server . from IH DataBase read Data send Socker Server
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Size: 140288 |
Author: 梦幻居 |
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Description: 其基本思想是取B样条函数 为及基函数，在[a,b]中均匀划分区间，xi=a+ih,h=(b-a)/n,由于三次样条函数空间是n+3维的，所以把分点扩充到x-1,xn+1,则任意三次样条函数可用 线性组合来表示：-The basic idea is to take B-spline function and basis functions in [a, b] in the evenly divided intervals, xi = a+ ih, h = (ba)/n, because the cubic spline function is n+3 dimensional space , so the expansion points to the x-1, xn+1, then any cubic spline function can be expressed as a linear combination:
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Size: 6144 |
Author: 咪噜 |
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Description: 连接GE软件系统中IH数据库的接口程序，可以把数据转传到其他数据库中-IH database connection in the GE software system interface program, the data can be forwarded to the other database
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Size: 3072 |
Author: xiqing |
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