Mean value algorithm of MA, EMA, SMA, DMA, TMA, WMA6MA, EMA, SMA, DMA, TMA, WMA6 average algorithms are often used in various indicator formulas, but most beginners may not understand their specific differences, organized as follows.MA (x,n) simple arithmetic averageThe N-day moving average of x, not the weight, the average calculation. The algorithm is:(X1+X2+X3+.....+XN)/nFor example, MA (c,20) represents the average closing price of 20th. C means c
This article mainly introduces the implementation of the Golden section in Python, involving techniques related to the calculation of Python's mathematics, the need for friends can refer to the
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 This is the
; > "' A,b = bracket (f,xstart,h) finds the brackets (a,b) of a minimum point of the user-supplied scalar function f (x). The search starts downhill from Xstart and a step length h. x,fmin = Search (f,a,b,tol=1.0e-6)
connected to a control display module with wireless transceiver function to form an independent device, therefore, the power consumption and volume of each module are greatly reduced. The patient can select different modules based on different needs. The LCD display on each module can display the measurement signal in real time. All these modules interact with the host machine through wireless information. The PC can register a unique serial number f
transmission distance can reach 50 m at Gbps. parallel Optical Communication supports parallel transmission of multiple light sources, which can achieve long-distance transmission at a high bit rate ,. this is one reason for parallel optical interconnection.
Parallel Optical module and Band Optical Cable
Parallel Optical Interconnection is achieved through parallel optical modules and band optical cables. the parallel optical module is based on VCSEL arrays and PIN arrays, with a wavelength of
Article title: ZK-ID6USB infrared has been successfully used in Linux. Linux is a technology channel of the IT lab in China. Includes basic categories such as desktop applications, Linux system management, kernel research, embedded systems, and open source.
Compared with the infrared transmitters integrated in the notebooks of major manufacturers, this independent USB port transmitter is difficult to drive in Linux, but it is still successful. The following describes how the IRDA subsystem works
, we have placed the annett Network Management Switch AT-8024 in the office area, connecting to our core switch Cisco 6509 via optical fiber and optical transceiver in the middle Cisco 6509 is configured as: super engine SUP720, a 16-port Gigabit Optical module WS-X6816-GBIC, A 48-port fast switching electrical module WS-X6548-RJ-45 ).
Trunk is set up on the corresponding port connecting the optical transceiver's 6509 and the annett switch's frame sea
card, which lays the foundation for the future development of personal communication. The 2. Base station subsystem (BSS) Base station subsystem is connected to the Mobile Service Switching Center (MSC) in the Network Path System (NSS) to achieve communication connections between mobile users or between mobile users and fixed network users, and to transmit system signals and user information. Of course, the BSS section should be operated and maintained, and the communication connection betwee
Classification algorithm and our life is closely related to the current data mining is the most widely used algorithms, such as: The known series of temperature, humidity sequence and the history of the statistics, we need to use historical data as a learning set to determine whether tomorrow rain, and bank credit card fraud discrimination.Classification problem has a learning set, according to the learning set to construct discriminant function, and finally according to the discriminant functio
In the use of two-dimensional optimization algorithm, it is often necessary to call one-dimensional search algorithm to find the step, while one-dimensional search algorithm needs to determine the search interval. The method can not only be used as a one-dimensional search algorithm, but also can be used to determine the one-dimensional searching interval.
The principle of the search interval determined by the Retreat method is:
Suppose the one-dimensional objective function is a single-peak fun
PostersProblem DescriptionThere are a lot of posters, each of which is subtracted from a rectangle (which may be totally subtracted). Now we have given the positions of no posters, asking for their area and.Ensure that the coordinates are between (0, 0) and (50000,500 00. No posters are hashed, and the side of the rectangle subtracted is parallel to the x and Y axes.InputThere is a lot of data.For each group of data, the first row has an integer N (0
The data ends with 0.
OutputOutput a row of
1743: Solution Equation descriptionA group of Ultraman defeated a group of small monsters, known all Ultraman have X1 head, y1 leg (mutation Ultraman), all the small monsters have x2 head, y2 leg. Battlefield on a total Q head, W leg, asked how many Ultraman, how many small monsters?InputThe input data has several groups each group contains 6 positive integers, respectively, x1,y1,x2,y2,q,w; (0OutputThe out
Title Address: POJ 3126Test instructions: give you two 4-bit is a prime number positive integer n,m, each time can change a Chichong bit in one of the numbers (the change is also prime, ask at least how many times the change n can become m, if not output impossible (Wo feel that there is no case of non-establishmentIdea: Change one at a time, then search it out.#include #include #include #include #include #include #include #include #include #include #include #pragma COMMENT (linker, "/stack:1024
Thinking: matrix and transformation, and the application of matrix in DirectX and OpenGL
1. Matrix and linear transformation: one-to-one correspondence
A matrix is a tool used to represent linear transformations. It corresponds to linear transformations one by one.Consider linear transformation:A11 * x1 + a12 * x2 +... + a1n * xn = x1'A21 * x1 + a22 * x2 +... + a2n * xn =
following example shows that the result is very interesting:
This method is only exploratory and empirical. It may be wrong from a strict mathematical model. However, the results in actual use are good enough, and this method only requires the minimum amount of computing. The following code is used to draw the image of the lion above. These codes are not optimized and are only used for demonstration. Some variables are calculated twice. In the actual program, if the same variab
α 2 = α 02 + y2 (E1-E2 )/
Unless the kernel function K does not meet the Mercer condition (that is, it cannot be used as the kernel function), there will be no negative value in the kernel function. But 0 = 0 can occur. In this case, we calculate the values of the two endpoints of the target function online segment, and correct the Laplace multiplier to the endpoint with a small target function:
F1 = Y1 (E1 + B)-α 1k (X1, X1)-S α 2 k (X1, X1)
F2 = Y2 (E2 + B)-S α 1k (X1,
Portal: http://acm.hust.edu.cn: 8080/judge/contest/view. Action? Cid = 12255 # OVERVIEW
When I started reading question a, I thought it was a simple deep search...
The K-question lightoj 1414 calculates the number of months in a given year, that is, the number of years in a leap. Based on the formula used to calculate the leap year, we can release it.
R/4-r/100 + R/400-(L/4-L/100 + L/400 ). Then judge the beginning and end.
if(strcmp(month2,"January")==0||(strcmp(month2,"February")==0)d
array is the number of turns of a path at this point, if (hash [x] [Y]> = now. turn) Q. push (now); note that the points that can be connected do not disappear, so each query statement is independent. (I think of it as a real continuous view, and the result is wa 10 times.) # include Int map [1001] [1001];
Int B [4] [2] = {-}, {0,-1 }};
Int x1, x2, Y1, Y2;
Int n, m;
Int visited [1001] [1001];
Typedef struct
{
Int X;
Int y;
Int count;
} Node;
Node pas
an index of the training set instead of the X 2, this 2 corresponds to the second line in the table you see, my Second training sample x Superscript (2) This means that it is a four-dimensional vector in fact more generally this is the N-Dimension vector with this notation x superscript 2 is a vector so I use x superscript (i) subscript J to represent the first I training sample, J features so specifically x superscript ( 2) Subscript 3 represents the 3rd feature in the 2nd t
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