spherical cow

The latest CompizFusion effects always surprise you. First, the Expo plug-in adds the curve mode, and now someone has brought Cylinder (cylindrical deformation) effect to the 3D desktop cube in Ubuntu8.04. The code for implementing this special effect is in the cubeaddon plug-in, for more information, see http://www.linuxidc.com/linux/2008-07/14505.htm. The latest Compiz Fusion effects always surprise you. First, the Expo plug-in adds the curve mode, and now someone has brought Cylinder (cylind

A few days ago I wrote the article category of the 3D spherical navigation on the left. Here I will make a simple record of the Implementation Details.Effect:The category title displays a 3D spherical effect. When you click the category title, a list of recommended articles corresponding to this category is displayed.Effect:HTML:Copy codeThe Code is as follows: Core JS: dynamically generate a 3D

[[JSOI2008] spherical space generator] (https://www.luogu.org/problemnew/show/P4035)Gauss de-yuan to make a mess#include #include#includeConst intMAXN = -;intN;DoubleLOC[MAXN][MAXN];DoubleST[MAXN],X[MAXN];voidGauss () {intT; for(intI=1; ii) {t=i; for(intj=i+1; jif(Loc[j][i]>loc[t][i]) t=J; if(t!=i) for(intj=i;j1;++j) Std::swap (Loc[t][j],loc[i][j]); for(intj=i+1; jj) {Doubletmp=loc[i][i]/Loc[j][i]; for(intk=i+1; k1; ++k) loc[j][k]=loc[i][k]-tmp*Lo

P4035 [JSOI2008] Spherical space generator title Main topicThe n+1 points on the n-dimensional space are given, and the stores are on a round surface, seeking the coordinates of the circle center.Defined: Sphere: A point of equal distance to any point on the sphere. Distance formula between two points \[A (x_1,x_2,x_3,x_4,\cdots x_n) \]\[B (y_1,y_2,y_3,y_4,\cdots y_n) \]\[Distance:\sqrt[2]{\sum_{i=1}^{n} (x_i-y_i) ^2} \]

1013: [JSOI2008] spherical space generator sphere time limit:1 Sec Memory limit:162 MBsubmit:3584 solved:1863[Submit] [Status] [Discuss] DescriptionThere is a spherical space generator capable of producing a hard sphere in n-dimensional space. Now that you are trapped in this n-dimensional sphere, you only know the coordinates of the n+1 points on the sphere, and you need to determine the

I wrote about the 3D ball navigation on the left a few days ago.ArticleClassification. Here we will make a simple record of implementation details. Effect: The category title displays a 3D spherical effect. When you click the category title, a list of recommended articles corresponding to this category is displayed. Effect: HTML: Core JS: dynamically generate a 3D spherical cloud + pop-up mode

Topic: Given n-dimensional space under the n+1 point, the N-point of the spherical sphereI've been trying for a long time. Simulated annealing 0.0 still not AC 0.0Today, digging the dung wall to learn the Gaussian elimination yuan ...We set the sphere to X (x1,x2,..., xn)Suppose there are two points a (a1,a2,..., an) and B (B1,b2,..., bn)Then we can get two equations.(X1-A1) ^2+ (X2-A2) ^2+...+ (Xn-an) ^2=r^2(X1-B1) ^2+ (X2-B2) ^2+...+ (xn-bn) ^2=r^2T

Final effect Diagram 1, first create a new graphics file. Click the file-new command, pop-up the new dialog box, and in the dialog box, set the width and height of the file to 400 pixels and 360 pixels respectively. In the toolbox, set the foreground color to red (r:255 g:0 b:0). 2, create a new layer, called "Layer 1." Press the Alt+backspace key to fill the layer with the foreground color. Then set the foreground color to black (r:0 g:0 b:0). 3. Use the "Horizontal type tool" in

the point X and the Globe $p_k?$. If the point-to-sphere distance is greater than the radius, it is encoded as-1, otherwise the encoding is 1.In order to compare the effects of different compactness on the results of the region based on the hyper-plane and the region based on the hyper-sphere, the paper makes the following two experiments:The y-axis in the left image represents the average of the maximum distance in the data points in the hash space under the same encoding, and the x-axis is a

Test instructions: Give the latitude and longitude of two points, find the difference between the spherical distance and the straight distance of two points.Solution: We calculate the spherical distance first, then we can calculate the straight distance according to the spherical distance.Spherical distance formula: r*acos (sin (W1) *sin (W2) +cos (W1) *cos (W2)

1013: [JSOI2008] spherical space generator sphere time limit:1 Sec Memory limit:162 MBsubmit:3074 solved:1614[Submit] [Status] [Discuss] DescriptionThere is a spherical space generator capable of producing a hard sphere in n-dimensional space. Now that you are trapped in this n-dimensional sphere, you only know the coordinates of the n+1 points on the sphere, and you need to determine the

JSOI2008 Spherical Space Generator sphere"Title description"There is a spherical space generator capable of producing a hard sphere in n-dimensional space. Now that you are trapped in this n-dimensional sphere, you only know the coordinates of the n+1 points on the sphere, and you need to determine the spherical coordinates of the n-dimensional sphere as quickly

http://www.lydsy.com/JudgeOnline/problem.php?id=1013Set the spherical sphere (x1,x2,x3 ... )The coordinates of the known point are t[i][j]So for each I satisfiesΣ (T[i][j]-x[j]) ^2 =σ (T[0][j]-x[j]) ^2Simplifying Open is (T[0][j]-t[i][j]) *x[j] = t[0][j]^2-t[i][j]^2N of equations N unknownsGaussian elimination element#include #include#includeusing namespacestd;intN;Doublet[ the],a[ the][ the];voidGauss () {intR; DoubleF; for(intI=0; i) {R=i; for(int

DescriptionThere is a spherical space generator capable of producing a hard sphere in n-dimensional space. Now that you are trapped in this n-dimensional sphere, you only know the coordinates of the n+1 points on the sphere, and you need to determine the spherical coordinates of the n-dimensional sphere as quickly as you can to destroy the sphere space generator.Input OutputinputThe first line is an intege

ball.) B. Moving spherical rope Effect: Prepare for the same with a, 1th Frame Code: d = 1000;CenterX = 275;CenterY = 200; Ang = 0; Function Project () {if (this.zThis._visible = false;}We have performed an important test here. If the object's Z value is less than 40, we think it's actually behind the user, so we don't have to draw it at all. Imagine the ball approaching us, at what point does it take us to notice the passing of the ball and then t

1013: [JSOI2008] spherical space generator sphereTime Limit: 1 Sec Memory Limit: 162 MBSubmit: 3211 Solved: 1685DescriptionThere is a spherical space generator capable of producing a hard sphere in n-dimensional space. Now that you are trapped in this n-dimensional sphere, you only know the coordinates of the n+1 points on the sphere, and you need to determine the sph