i3 4170

transformer, and the current of the secondary coil of the transformer is I2 (ton +) in the opposite direction, the rectification diode D1 does not turn on the current ∆ I1/n. Therefore, the current ∆ I1/n can only be produced by the transformer secondary coil N3 winding, the rectified diode D3 recharges the input voltage UI.During the ton period, because the I10 of the current of the switch power supply transformer is equal to 0, the current I2 in the N2 winding circuit of the transformer secon

!" . Really annoying! Modified:First of all, I would like to thank abcdhy for pointing out the problem. In order to spur myself more, I will keep the explanation of the above errors, and remind myself that we must be down-to-earth in researching the problem and make multiple research efforts. For convenience, I wrote the following code: public class test { Public static void main (string [] ARGs ){ Integer I1 = 127; Integer I2 = 127; Integer I3 = int

Python-based Apriori algorithm and pythonApriori Algorithm Apriori algorithm is a basic algorithm in association rules. The association rule mining algorithm proposed by Dr. Rakesh Agrawal and Ramakrishnan Srikant in 1994. Association rules are used to identify the relationship between items in a dataset, also known as Market Basket analysis ), because "shopping Blue Analysis" expresses a subset that is applicable to this algorithm scenario.For more information about the algorithm, see the foll

Learning Précis-writersThere are two types of keys: symmetric key and asymmetric keytwo key typesAccording to the cryptographic keys used by the cipher algorithm and the encryption key is the same, whether the decryption process can be deduced from the encryption process (or by the decryption process to derive the encryption process), the cryptosystem can be divided into symmetric cryptography (also known as single-key cryptography, secret key cryptography, symmetric key cryptography) and asymme

the field range.6.1.7 a format general form: Aw or: A for the output of the character data, W is the field width, does not specify W (that is, form: A), by the actual length of the character variable (that is, the program defines the length of the variable) output. The string is aligned to the right in the specified area, and if the string has a smaller number of bits than the specified field width, the left side is blank, and if the number of bits exceeds the specified field width W, only the

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the 16-dot-matrix Chinese characters. Function: int WrtHz16 (int x, int y, int z, int color, char * p); function: display the Chinese character string p in color (x, y, the number of spaces between Chinese characters is z. IntWrtHz16 (int x, int y, int z, int color, char * p) { Unsigned int I, c1, c2, f = 0;/* x, y: write at (x, y );*/ Int rec, i1, i2, i3;/* z: space ;*/ Long l;/* color: txt color */ Char by [32];/* p: HZ str */ If (han

. PruningHow does a sequence self-connect? There is a definition, that is, for sequences S1 and S2, if the sequence S1 remove the first item, and sequence 2 is the same as the sequence that gets the last item, then sequence 1 and sequence 2 can be connected. Add the last item of sequence 2 to sequence 1 to get a new connection, which can be the result of a connection to sequence 1 and sequence 2.The pruning condition of GSP algorithm is the same as the pruning condition of Apriori algorithm:1. I

Cause: we often encounter URL encryption. At present, no matter the information about PeopleSoft in China or abroad is far less than that of C # VB and other materials. After: in desperation, I had to understand the encryption principle of RC4 and write a method myself. Result: After several days of hard work. The Code is as follows. Harassment is welcome if you have any questions. Function iscript_revengeboy Link = msggetexplaintext (32000, 62, "message not found "); Squery = "http://home.cnb

Java string optimization The final keyword in Java can be used in class members (not called domains), in class methods, and in classes. The final is used in the domain to represent: 1, a constant amount of compilation that never changes. 2, a value that is initialized at run time, and you don't want it to be changed. The static keyword can be used in conjunction with the final keyword, and static emphasizes only one copy, regardless of how many times the class is initialized, the members of th

First, the basic data type of java.Java Basic data type:BYTE, short, int, long, float, double, char, BooleanAutomatic boxing (autoboxing), unpacking (unboxing) of the basic data type is a feature that has been available since J2SE 5.0.Packing:The basic types are packaged with their corresponding reference types, making them the object's nature. int is packaged as Integer, float is packed into floatUnpacking:As opposed to boxing, simplifying objects of reference types to data of value typesDescri

compilation error occurs.)(in jdk1.5 and above, B can be the basic data type, a cannot) the same way, other encapsulation classes and basic types are the same. The difference between equals and = = in Java= = compares the addresses of 2 objects, while equals compares the contents of 2 objects.In versions above jdk1.5, the base and wrapper classes can be converted automatically, similar to string-type objects and strings constants.Integer i1 = 123; Integer i2 = 123;int i = 123;Integer

person who set this password." Dblspace _ "Now to check and clear passwords." AUTHORS VERSION Const MSGPWORDFOUND2 as String = "You had a worksheet" _ "Password set." Dblspace "The password found was:" _ Dblspace "$$" Dblspace "Note it down for potential" _ "Future use in the other workbooks by same who" _ ' Set this password. ' Dblspace ' Now to check and clear ' _ "Other passwords." AUTHORS VERSION Const Msgonlyone as String = "Only Structure/windows" _ "Protected

function1 @Override 2 Public int intvalue () {3 return value; 4 }This is simple, return the value directly.Ii. related issuesAbove we see in the constructor of integer, it is divided into two cases:1, I >= 128 | | I 2, I 1 Private Static Final New INTEGER[256];Small_values had already been created, that is to say, in I >= 128 | | I This may not be clear enough, let's give an example:1 Public classMain {2 Public Static voidMain (string[] args) {3 4Integer i1 = 100;5Integer i2 = 100;6I

compilation error occurs.) (in jdk1.5 and above, B can be the base data type, a cannot)Similarly, other encapsulation classes and basic types are the same.The difference between equals and = = in Java= = compares the addresses of 2 objects, while equals compares the contents of 2 objects.In versions above jdk1.5, the base and wrapper classes can be converted automatically, similar to string-type objects and strings constants. Java code Integer i1 = 123; Integer i2 = 123; int i = 12

Functions or procedures can haveDefault Parameter(Default parameters), As in its name, if a function or process does not specify a parameter during call, it will provide a default value for the function. To declare a process or function with a default value, the parameter type is followed by an equal sign and default value. The following example shows a complete example to implement an addition program. By default, two numbers are added, but three numbers can also be added. 1,Create a console ap

must be included in the Display field. ' If the field name is not the same as the name to be displayed, use ' FH display direction is ' H ' for horizontal display, for ' S ' when vertical display is case sensitive FUNCTION Tabdisp (TAB,DISPFILD,FINDFILD,PAGEN,FH) On Error Resume Next IF dispfild= "" THEN dispfild= "*" IF pagen= "" THEN pagen=15 dispfild1=dispfild "," findfild1=findfild "," Dim Findl (A), Findr (10) I1=1 Do While InStr (Findfild1, ",") Star=instr (Findfild1, ",") Findl (I1) =le

2011.2.19 AM Learn about yangzhongke. net Video c # knowledge points summarized after the basics: (these knowledge points are all the content that Mr. Yang zhongke mentioned in the lecture or on the courseware. I will collect and organize them, I hope to share with you what you want to learn. network friends help) 1. Use C # To compile a 10 + 20 =? Small Program: Public static void Main (tring [] args) { Int i1 = 10; Int i2 = 20; Int i3 = i1 + i2; Con

How to save money and maximize profits Assume that the monthly interest rates of the entire bank deposit for different periods are: 0.63% term = 1 year 0.66% term = 2 years 0.69% term = 3 years 0.75% term = 5 years 0.84% term = 8 years Interest = Principal * monthly interest rate * 12 * deposit period. Now someone has 2000 yuan in his hand. Please select a deposit scheme through computation, this gives the bank the most interest after 20 years of deposit (assuming that the bank does not pay any