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' t make a revolver even if you help him with the math.InputInput starts with an integer T (≤125), denoting the number of test cases.Each case contains a real number R (0 OutputFor each test case, print the case number and r in a single line. Errors less than 10-6 'll be ignored.Ideas:Can know: r/(r-r) = sin (360°/N/2), then you can find the value of R#include #include#include#include#includeusing namespacestd;Const DoublePI =3.1415926535898;intMain () {intT,n; DoubleR,r,

, double sy): x (sx), y (sy ){}} P [maxn];Double operator/(const Point B, const Point ){Return atan2 (B. y-a.y, B. x-a.x );}Bool operator If (a. x! = B. x)Return a. x Return a. y }Inline double cross (double x1, double y1, double x2, double y2 ){Return x1 * y2-x2 * y1;}Inline double chacha (Point s, Point a, Point B ){Return cross (a. x-s.x, a. y-s.y, B. x-s.x, B. y-s.y );}Struct Edge {Double ang;Int;Edge (){}Edge (double a, int t):

)));} // Obtain the angle radians of the horizontal linePublic static float getradian (point a, point B ){Float Lena = B. x-a.x;Float lenb = B. y-a.y;Float lenc = (float) math. SQRT (Lena * Lena + lenb * lenb );Float ang = (float) math. ACOs (Lena/lenc );Ang = ang * (B. Y Return Ang;}} Android: Orientation = "vertic

springColumn CoordinateEquation: r = 5Theta = T * 3600.Z = (sin (3.5 * theta-90) 24 * tFigure 12. Linear line.Playing the cardEquation: A = 10X = 3 * a * t/(1 (t ^ 3 ))Y = 3 * a * (t ^ 2)/(1 (t ^ 3 ))Figure 23. helical curve)Cylindrical)Equation: r = TTheta = 10 t * (20*360)Z = T * 3Figure 34. Butterfly CurveSpherical CoordinatesEquation: FIG = 8 * tTheta = 360 * T * 4Phi =-360 * T * 8Figure 45. InvoluteCartesian coordinate systemEquation: r = 1Ang = 360 * tS = 2 * pI * r * tX0 = S * Cos (

36 Krypton learned that the middle and primary schools one-on-one online tutoring platform "Hi class" today announced the completion of A + round of financing, financing amount of 60 million yuan. This round of investors is genetic capital and also linked capital. It is reported that this round of financing will be used for teaching and research, teacher training, quality courses and user experience, such as business development, to extend the Shanghai-centered primary and secondary schools and

Image rotation Calculation formula: i´= i*cosθ-j*sinθ j´= i*sinθ+j*cosθ Step 1: Canvas expansion, determined by the endpoint value expansion range Step 2: Rotate the formula from the image to get a new image Step 3: Hole filling (o The near interpolation method and the mean value interpolation method are the neighboring interpolation methods. function [IM] = rot_interpolation (i,ang)% I = [11 12 13; 21 22 23; 31 32 33]; %

Just change the parameters to draw the polygon you want, the code is simple! Have to marvel at the power of canvas!Code to serve.DOCTYPE HTML>HTML>Head>MetaCharSet= "gb2312">title>Drawingtitle>Head>Body> CanvasID= "MyCanvas"width= ' $ 'Height= ' $ '>Canvas Draw Line TipsCanvas>Script> varMyCanvas=document.getElementById ("MyCanvas"); varContext=Mycanvas.getcontext ("2d"); functionDrawPath (x, y, N, r) {varI,ang;

Tags: blog http os using io ar for art divHttp://thirteen-tw.blogspot.com/2008/09/debian-mysql-server.html Installation Mysql-serverdebian:~# Apt-get Install Mysql-server Activate Mysql-serverdebian:~#/etc/init.d/mysql Start Client-side connection to Mysql-serverThe machinedebian:~# Mysql-u Root-pRemote Terminaldebian:~# mysql-h 140.134.210.131-u root-p Information Warehouse operation Connect to the client program in this machinedebian:~# Mysql-u Root-p To i

A Kingdee system hits the database and Remote Command Execution . Detailed description: 1. credential stuffing: https://sso.youshang.com/sso/userauthnaction.dow.infinite credential stuffingPacket Capturing, credential stuffing, 123456 Password You can log on: Mask Region *****iyin**********qian**********ying**********ing**********mei**********ang**********mei**********hua**********ng5**********ng5**********ng5**********en5**********ng5*****

. restore () // pop up the drawing state saved on the top of the heap Context. save () // save the current drawing status on the drawing status Stack For example, if you set the line color to red, then context. save (); then set the line color to green, and then context. restore (), the line color is actually red, so the general drawing method is like this Context. save (); Drawing codes... Context. restore (); 5) Transform Context. translate (x, y) // move the origin of the Canvas to x

Description: The nspredicate in the cocoa Framework is used for querying, both in principle and in usage similar to where in SQL, which acts as a filter for the database.The most commonly used function+ (Nspredicate *) Predicatewithformat: (NSString *) Predicateformat, ...;1. Compare operators >, Example: @ "number >= 99"2. Scope operator: in, betweenExample: @ "number between {1,5}"@ "address in {' Shanghai ', ' Nanjing '}"3. String itself: SelfExample: @ "self = = ' APPLE '"4. String-Related:

); glLoadIdentity(); gluLookAt(x, y, z, x + lx,y + ly,z + lz, 0.0f,1.0f,0.0f); } void drawSnowMan() { glColor3f(1.0f, 1.0f, 1.0f); // Draw Body glTranslatef(0.0f ,0.75f, 0.0f); glutSolidSphere(0.75f,20,20); // Draw Head glTranslatef(0.0f, 1.0f, 0.0f); glutSolidSphere(0.25f,20,20); // Draw Eyes glPushMatrix(); glColor3f(0.0f,0.0f,0.0f); glTranslatef(0.05f, 0.10f, 0.18f); glutSolidSphere(0.05f,10,10); glTranslatef(-0.1f, 0.0f, 0.0f); glutSolidSphere(0.05f,10,10); glPopMatr

, 0.0f,1.0f,0.0f); } void drawSnowMan() { glColor3f(1.0f, 1.0f, 1.0f); // Draw Body glTranslatef(0.0f ,0.75f, 0.0f); glutSolidSphere(0.75f,20,20); // Draw Head glTranslatef(0.0f, 1.0f, 0.0f); glutSolidSphere(0.25f,20,20); // Draw Eyes glPushMatrix(); glColor3f(0.0f,0.0f,0.0f); glTranslatef(0.05f, 0.10f, 0.18f); glutSolidSphere(0.05f,10,10); glTranslatef(-0.1f, 0.0f, 0.0f); glutSolidSphere(0.05f,10,10); glPopMatrix(); // Draw Nose glColor3f(1.0f, 0.5f , 0.5f); glRotatef(0.

Differences between translate and replace Today, the nesting of replace and translate in the Oracle database is a bit confused, so I went online and looked at it, and it suddenly became clear: The problems encountered today are as follows: Replace (TRANSLATE (a. deal_msg, '2013', ''),'', '') AS deal_msg, This is only part of an SQL statement. What does it mean? Is to set. in the deal_msg field, replace 0 and 1 with spaces. Of course, replace 01 with two spaces and replace. in deal_msg, 23456789

Please help me write a few codes. I need to display a random number (5 digits) on a page) This number is changed once a day. it will change after a.m., and the refresh will not change. Reply to discussion (solution) Session_start ();If (date ("% h % s", time () = "00:00 "){$ _ SESSION ['num'] = rand (Random, 99999 );}Echo $ _ SESSION ['num'];?> If the same seed is used, a random number with the same sub-Ang is generated. srand(date('Ymd'));ech

reading", copy the Japanese, and translate the translation.Use VNR to play the game, there is a way to do it. Download schematic tutorial 3 at the bottom, vnr the latest version.Play with VNR translationNot with VNR friends please see the illustration below for Tutorial 1, 2. Download schematic tutorial 3 at the bottom, vnr the latest version.VNR Simplified graphic tutorial on Chinese translation of Japanese gameshttp://867258173.diandian.com/150421/don't delete it, okay?http://tieba.baidu.com/

Function code for converting Chinese characters into pinyin characters in php. Click here to download the source file copy code: functionPinyin ($ _ String, $ _ Codegb2312) {$ _ DataKeya | ai | an | ang | ao | ba | bai | ban | bang | bao | bei | ben | beng | bi | bian | biao | bie | bin click here download source file The code is as follows: Function Pinyin ($ _ String, $ _ Code = 'gb2312 '){$ _ DataKey = "a | ai | an |

Use PHP to obtain the Chinese pinyin. If you don't talk about it, just copy the code as follows :? PhpclassGetPingYing {private $ pylistarray (a-20319, ai-20317, an-20304, ang-20295, ao-20292, not much nonsense said, directly on the code: The code is as follows: Class GetPingYing { Private $ pylist = array ( Apos; a apos; = apos;-20319 apos, 'AI' =>-20317, 'Any' =>-20304, 'Ang '=>-20295, 'Ao' =>-2029

] [0] [1]) 15 print ("name [-5:-1] -----", name [-5:-1]) 16 print ("name [-5:] -----", name [-5:]) 17 18 # modify 19 name [1] = "Wangminghu" 20 print ("name =", name) 21 # insert, only one 22 name can be inserted at a time. insert (2, "MingGou") 23 print ("name =", name) 24 # append 25 name. append ("Alex") 26 print ("name =", name) 27 # Delete 28 name. remove ("MingGou") 29 print ("name =", name) 30 31 # running result 32 name ----- ['mark', 'jack ', 'Ang