• 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] [美] [ˈɪntɪɡrəl, ɪnˈtɛɡrəl]
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 是近似的意思...integral 是积分的意思...回答者：zhidao.baidu.com - 相关搜索

2.整体
instructions||指导...integral||整体...integrate||整合bbs.tingroom.com - 相关搜索

3.组成的；整的
integral...integral [ 'intigr?l] a.组成的；整的...机翼整体油箱 integral wing tankcn.wordmind.com - 相关搜索

4.完整的
tangible触摸到，明确的...integral完整的...integrate积分microedu.com - 相关搜索

转载于:https://www.cnblogs.com/silentjesse/archive/2011/08/30/2159466.html
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• Wordpress Integral
• <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....
• <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 ...
• <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>
• <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 ...
• <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
• <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 ymin、ymax（或两者）为函数句柄，则可实现最佳性能和精确度。

如果 ymin、ymax（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


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• 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 ...
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• <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

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;
/*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;
}
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• 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 libraryfrom decimal import *# Initializing a decimal valuea = Decimal(1.898989)b = Decimal(2.0)# printing Decimal valuesprint ("Decimal value a : ", a)print ("Decimal value b : ", b)# Using Decimal.to_integral() methodprint ("\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 :  1.8989890000000000380708797820261679589748382568359375Decimal value b :  2Decimal a with to_integral() method :  2Decimal b with to_integral() method :  2代码2：to_integral()方法的示例# Python Program explaining# to_integral() method# loading decimal libraryfrom decimal import *# Initializing a decimal valuea = Decimal(3.14)b = Decimal(15)# printing Decimal valuesprint ("Decimal value a : ", a)print ("Decimal value b : ", b)# Using Decimal.to_integral() methodprint ("\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 :  3.140000000000000124344978758017532527446746826171875Decimal value b :  15Decimal a with to_integral() method :  3Decimal b with to_integral() method :  15
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• 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 ...
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• GUIDED INTEGRAL FILTER FOR LIGHT FIELD STEREO MATCHING

...