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  • integral

    2011-08-30 12:55:00
    integral[英] [ˈintiɡrəl] [美] [ˈɪntɪɡrəl, ɪnˈtɛɡrəl] adj 1. 构成整体所必需的; 不可或缺的2. 作为组成部份的3. 完整的;完备的 网络释义 以下结果来自互联网 1.积分 approx 是近似...

    integral[英] [ˈintiɡrəl] sound.gif[美] [ˈɪntɪɡrəl, ɪnˈtɛɡrəl]

    adj

    1. 构成整体所必需的; 不可或缺的2. 作为组成部份的3. 完整的;完备的

     

    网络释义
    以下结果来自互联网

    转载于:https://www.cnblogs.com/silentjesse/archive/2011/08/30/2159466.html

    展开全文
  • Wordpress Integral

    2019-11-27 23:48:19
    Wordpress Integral
  • Integral Windup

    2020-11-28 05:13:15
    <div><p>If Output is maxed due to a very large error (like when the controller first starts), it looks like Integral will continue to wind up (outputSum increasing) until it ALSO hits the outMax....
  • Integral Exercises

    2020-12-31 14:08:41
    <div><p>So I noticed there are actually two other integral exercises being submitted at the moment. Oh well! Having to choose from multiple contributions is definitely a luxury problem. This is an ...
  • <div><p><a href="https://github.com/dm61/Loop/tree/integral-retrospective-correction">Integral-retrospective-correction</a> or IRC is an experimental modification of the Loop's ...
  • Integral Image

    2021-01-10 16:36:02
    <div><p>Integral Image PR on separate branch. In response to #949 </p><p>该提问来源于开源项目:scikit-image/scikit-image</p></div>
  • Integral invariant

    2020-12-02 16:25:08
    <div><ul><li>Improvement of Integral Invariant curvature estimators (both 2D / 3D & DigitalSurfaceConvolver) & tests</li><li>Adding a functor on digital points from a predicate on digital ...
  • Integral PDE

    2020-12-25 17:23:43
    <p>I studied your example about the IDE which solves the ODE involving integral of the unknown function. I am wondering if this method can be applied to solve PDE involving integral of the unknown ...
  • calculus-integral

    2017-01-17 17:38:16
    calculus-integral
  • Face integral

    2020-12-31 11:03:03
    <p>I want to do face integral <code>\int_F (\nabla w \cdot n) v dS, where <code>n</code> must be outward normal direction of <code>tet 1</code> and <code>v</code> is a test function. Below is about ...
  • 1、integral 注意:fun必须使用数组运算符而不是矩阵运算符。例如,使用.*(times) 而不是*(mtimes)。 eg: fun = @(x) exp(-x.^2).*log(x).^2; q = integral(fun,0,Inf) q = 1.9475 含有参数: fun = ...

    1、integral

        

    注意:fun 必须使用数组运算符而不是矩阵运算符。例如,使用 .* (times) 而不是 * (mtimes)

    eg:

      fun = @(x) exp(-x.^2).*log(x).^2;
      q = integral(fun,0,Inf)
      q = 1.9475

    含有参数:

      fun = @(x,c) 1./(x.^3-2*x-c);
      q = integral(@(x) fun(x,5),0,2)
      q = -0.4605
    参考:https://ww2.mathworks.cn/help/matlab/ref/integral.html#btdd9x5

    2、integral2

         

    eg:

      fun = @(x,y) 1./( sqrt(x + y) .* (1 + x + y).^2 );

        

    注意:仅y的上下限含变量(可以在对非矩形区域积分时将 ymin 和ymax 指定为函数句柄(x 的函数)),x的上下限必须是有限或无限的实标量值。

    在对非矩形区域积分时,如果 yminymax(或两者)为函数句柄,则可实现最佳性能和精确度。

    如果 yminymax(或两者)为无边界函数,请使用 'iterated' 方法。

         

    参考:https://ww2.mathworks.cn/help/matlab/ref/integral2.html

     

     

     

     

     

     

     

     

     

    展开全文
  • Arthur Erdelyi - Tables of integral transforms. Vol.1.-McGraw-Hill Inc.,US (1954)
  • <div><p>The non-member function <code>size</code> was recently constrained to require the <code>Integral</code> concept which broke some code that returned non-literal integral types. The workaround ...
  • Implement watch integral

    2020-12-02 00:09:36
    <div><p>This PR implements watch integral functionality which was discussed in #342 <ul><li>Integral values are calculated based on connectivity information:</li><li>If face connectivity exists, ...
  • Missing integral points

    2020-12-09 05:19:44
    s a Sage bug for integral points on elliptic curves that's exposed for the elliptic curve <a href="http://www.lmfdb.org/EllipticCurve/Q/2082/a/1">2082.a1</a>: in addition to the points listed ...
  • Better integral formatting

    2020-12-06 00:29:13
    m using iosMath in one of my apps, and I was wondering if there were plans for better integral support. This includes (in relative order of importance to me): * the <code>\mathrm</code> command, which...
  • Add Fresnel integral

    2021-01-06 06:07:17
    <p>Adds a function to compute both parts of the <a href="https://en.wikipedia.org/wiki/Fresnel_integral">Fresnel integral</a>. <h2>Related Issues <p>Does this pull request have any related issues? ...
  • Double integral problem

    2020-12-26 02:39:34
    <p>The key point of my question is that the coefficient D needs to be taken an integral of the function U in the bar coordinates (rbar, zbar), not (r, z). I am doing this process like below: <pre>...
  • integral函数

    千次阅读 2015-08-25 10:15:32
    integral函数 计算积分图像 C++: void integral(InputArray src, OutputArray sum, int sdepth=-1 ) c语言:void cvIntegral( const CvArr* image, CvArr* sum, CvArr* sqsum=NULL, CvArr* ...

    integral函数

    计算积分图像

    C++: void integral(InputArray src, OutputArray sum, int sdepth=-1 )

    c语言:void cvIntegral( const CvArr* image, CvArr* sum, CvArr* sqsum=NULL, CvArr* tilted_sum=NULL );
    
    image
    输入图像, W×H, 单通道,8位或浮点 (32f 或 64f).
    sum
    积分图像, (W+1)×(H+1)(译者注:原文的公式应该写成(W+1)×(H+1),避免误会), 单通道,32位整数或 double 精度的浮点数(64f).
    sqsum
    对象素值平方的积分图像,W+1×H+1(译者注:原文的公式应该写成(W+1)×(H+1),避免误会), 单通道,32位整数或 double 精度的浮点数 (64f).
    tilted_sum
    旋转45度的积分图像,单通道,32位整数或 double 精度的浮点数 (64f).

    函数 cvIntegral 计算一次或高次积分图像:

    sum(X,Y) = image(x,y)
      x < X,y < Y  
    sqsum(X,Y) = image(x,y)2
      x < X,y < Y  
    tilted_sum(X,Y) = image(x,y)
      y < Y, | x − X | < y  

    利用积分图像,可以计算在某象素的上-右方的或者旋转的矩形区域中进行求和、求均值以及标准方差的计算,并且保证运算的复杂度为O(1)。例如:

    \sum_{x_1 \leq x<x_2,y_1 \leq y<y_2}image(x,y)=sum(x_2,y_2)-sum(x_1,y_2)-sum(x_2,y_1)+sum(x_1,x_1)

    因此可以在变化的窗口内做快速平滑或窗口相关等操作。



    opencv代码:

    #include <opencv2/core/core.hpp>
    #include <opencv2/highgui/highgui.hpp>
    #include <opencv2/imgproc/imgproc.hpp>
    #include <iostream>
    #include<cv.h>
    #include<stdlib.h>
    using namespace cv;
    using namespace std;
    
    
    int main()
    {
    	Mat src, dst;
    	src = imread("D:6.jpg");
    	/*Mat kx = (Mat_<float>(1, 3) << 0,-1,0);
    	Mat ky = (Mat_<float>(1, 3) << -1,0, -1);
    	sepFilter2D(src, dst, src.depth(),kx,ky,Point(-1,-1),0,BORDER_DEFAULT );*/
    	cvtColor(src, src, CV_RGB2GRAY);
    	integral(src, dst, CV_32FC1);
    	
    	imshow("shiyan", dst);
    	waitKey(0);
    	return 0;
    }


    展开全文
  • Decimal#to_integral():to_integral()是一个Decimal类方法,该方法返回舍入的整数值用法:Decimal.to_integral()参数:十进制值返回:四舍五入的整数值。代码1:to_integral()方法示例# Python Program explaining...

    Decimal#to_integral():to_integral()是一个Decimal类方法,该方法返回舍入的整数值

    用法:Decimal.to_integral()

    参数:十进制值

    返回:四舍五入的整数值。

    代码1:to_integral()方法示例

    # Python Program explaining

    # to_integral() method

    # loading decimal library

    from decimal import *

    # Initializing a decimal value

    a = Decimal(1.898989)

    b = Decimal(2.0)

    # printing Decimal values

    print ("Decimal value a : ", a)

    print ("Decimal value b : ", b)

    # Using Decimal.to_integral() method

    print ("\n\nDecimal a with to_integral() method : ", a.to_integral())

    print ("Decimal b with to_integral() method : ", b.to_integral())

    输出:

    Decimal value a : 1.8989890000000000380708797820261679589748382568359375

    Decimal value b : 2

    Decimal a with to_integral() method : 2

    Decimal b with to_integral() method : 2

    代码2:to_integral()方法的示例

    # Python Program explaining

    # to_integral() method

    # loading decimal library

    from decimal import *

    # Initializing a decimal value

    a = Decimal(3.14)

    b = Decimal(15)

    # printing Decimal values

    print ("Decimal value a : ", a)

    print ("Decimal value b : ", b)

    # Using Decimal.to_integral() method

    print ("\n\nDecimal a with to_integral() method : ", a.to_integral())

    print ("Decimal b with to_integral() method : ", b.to_integral())

    输出:

    Decimal value a : 3.140000000000000124344978758017532527446746826171875

    Decimal value b : 15

    Decimal a with to_integral() method : 3

    Decimal b with to_integral() method : 15

    展开全文
  • Calculate the Integral

    2017-09-03 09:30:26
    calculate the integral: Input A line containing only the integer N is given first. Then N lines follow, each line has two float-point number Ai and Bi. There are several test cases, so process ...
  • New Integral Cheat Sheet

    2020-12-31 19:49:47
    - [x] Cheat Sheets: <strong><code>New integral Cheat Sheet</code></strong> - [ ] Other: <strong><code>New {IA Name} Instant Answer</code></strong> - [ ] Improvement - [ ] Bug fix: <strong><code>{IA...
  • 通过 Euler integral

    2021-03-29 22:47:21
    Gamma公式展示 Γ(n)=(n−1)!∀n∈N\Gamma(n) = (n-1)!...∀n∈N 是通过 Euler integral www.34314.com Γ(z)=∫0∞tz−1e−tdt . \Gamma(z) = \int_0^\infty t^{z-1}e^{-t}dt\,. Γ(z)=∫0∞​tz−1e−tdt.
  • GUIDED INTEGRAL FILTER FOR LIGHT FIELD STEREO MATCHING

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