webwork answers

I plan to learn python for the course next semester. It is said that it is faster to directly create a small project than to learn syntax first. Therefore, I plan to create the following small program and do not know how difficult it is to implement and what knowledge points are needed, I hope you can give me some guidance. Thank you very much: In the answer to zhihu's mathematical classification, filter out more than 10 answers with 500 likes (that i

weaknesses. Remember, your answer is not only to explain your strengths and weaknesses to the interviewer, but also to show your values and opinions on your own values in general. incorrect answer: In terms of strengths, I can't find any outstanding aspects. I think my skills are very broad. As for weaknesses, I think I may get bored if a project is delayed for too long. comment: the biggest answer to this question is that a job seeker is actually the first part of the refusal to answer a que

Interview questions about the Linux firewall ' iptables 'Nishita Agarwal, a tecmint user, will share an interview experience with a company she has just experienced (Pune, a private company in India). She was asked many different questions during the interview, but she was an expert on iptables, so she wanted to share these questions about iptables and the answers to those who might be interviewing later.All questions and corresponding

51cto college specially sorted out "exercise questions and answers for the 2014 soft exam Network Administrator examination [summary]" in the soft exam preparation season to help schools pass smoothly! For more software proficiency test counseling and questions, please pay attention to the 51cto college-soft exam classification! Exercise questions and answers for the 2014 soft exam Network Adminis

Microsoft classic interview questions (with answers) Want the company to make profits? You have to rely on the system! -Online consultation! Source: The reason for a famous brand is that even recruitment is different. Microsoft's recruitment has always been a topic of discussion, saying that it is so difficult ......

-- function (i) {getnumfun[i] = fu Nction () {alert (a[i]); }}) (Len); }} /* Tofun (a); GETNUMFUN[5] (); */ 3.varObjarr =[{A:2,b:1}, {d:5}, {a:1,b:2,c:3} ];functionrule (o1,o2) {varSizeobj =function(obj) {varSize=0; for(varIinchOBJ) size++; returnsize; } returnSizeobj (O1)-Sizeobj (O2); }/*objarr.sort (rule); Console.log (Objarr[0]); */4. function Fib (n) { if(n===1| | n

'- F 1 |sort |uniq-c | awk ' {if ' > Print $ ' | sort -nr |less One , View the most recently accessed filesCat Access_log |tail-10000|awk ' {print $7} ' |sort|uniq-c|sort-nr|lessview the pages in the log that have visited more than three timesCat Access_log | Cut-d '-F 7 | Sort |uniq-c | awk ' {if (>) print $} ' | Less, list transfer times over - seconds of FileCat Access_log|awk ' ($NF >) {print $7} ' |sort-n|uniq-c|sort-nr|head-20, List the most time-consuming pages ( more than a secon

execution fails, the following command is ignored. || : If one command executes successfully in multiple commands, the following command is ignored, otherwise the following command is run. 16. What if you just want to let a user use a variable?VIM/HOME/USERNAME/.BASHRC add a line of export abc=123 and then SOURCE/HOME/USERNAME/.BASHRC17. Which command will be used to list all the variables in the system and the current user defined custom variables?SetThis article is from the "fragrant

("Too big, a little bit smaller");}else{System.out.println ("Congratulations on your guess right");Break}System.out.println ("remaining" + (10-A) + "Second Chance");}while (true);}}　　4. use a double loop to print all the primes between the 2~200. public class Text {public static void Main (string[] args) {for (int i = 2; i Boolean A = true;for (int j = 3; J if (i%j==0) {A = false;Break}}if (a) {System.out.println (i);}}}} An int array is known to arr = {12,4,22,11,24,9}, finding the ma

is set to NULL, will the garbage collector immediately release the memory occupied by the object?No, in the next garbage collection cycle, this object will be recoverable.100. What is the difference between a serial (serial) collector and a throughput (throughput) collector?The throughput collector uses a parallel version of the new generation garbage collector, which is used for medium-sized and large-scale data applications. The serial collector is sufficient for most small applications, whic

First step: Find all files in the/oldboy directory and its subdirectories that end with the extension. shFind all Files:[Email protected] oldboy]# find/oldboy/-type f/oldboy/t.sh/oldboy/test.sh/oldboy/test/del.sh/oldboy/alex.txt/ Oldboy/oldboy.txtFind all files ending with. sh[Email protected] oldboy]# find/oldboy/-type f-name "*.sh"/oldboy/t.sh/oldboy/test.sh/oldboy/test/del.sh13.2 Step Two: How to replace the Oldboy in a file with the Oldgirl[[email protected] oldboy]# #sed ' s# What you're l

divided into several chunk memory blocks (chunks in different slab are not the same size)Memcached maintains a memory allocation information table, which writes data to the slab partition central area that has the most chunk size and data size, which can reduce memory wasteTip: Similar to disk Inode,block7, memcached deletion principle and delete mechanism?　　Memcached is an inert detection mechanism, does not actively detect whether the data is out of date, only when the data is get to detect w

best way to do this is to sort by (). (2 points) Hill Bubble Fast Exchange Author : ShangUnit : City College of Zhejiang University2-29(Neuds) The record with the highest key value from the sequence to be sorted is placed in an ordered sequence called (). (2 points) Hill sort Direct Select sort Bubble sort Quick Sort Title Answer result Score2-3d Answer right 22-4c Answer right 22-5A Answer right 22-6b Answer right 22-7c Answer right 22-8c Ans

Wireless networks are becoming increasingly popular, and we can build a small wireless network at home, which inevitably reveals some problems. So let's take a look at some of the home wireless WLAN technology to help you with the answers to the questions. Home Wireless WLAN technology Qamp;a 1.WLAN=GPRS? once had a lot of friends asked, equipped with wireless network card notebook computer in connection with AP can be anywhere wireless internet?

=" Wkiom1fuv0-dv_xkaacmuasbues515.png-wh_50 "/>* block all output from this command650) this.width=650; "Src=" Http://s5.51cto.com/wyfs02/M01/88/50/wKiom1fuV6KgcSxMAAA8_u1V7IE446.png-wh_500x0-wm_3 -wmp_4-s_2141352394.png "title=" 17.png "alt=" Wkiom1fuv6kgcsxmaaa8_u1v7ie446.png-wh_50 "/>* Show all output of this command and save output to any file on the desktop650) this.width=650; "Src=" Http://s5.51cto.com/wyfs02/M00/88/4C/wKioL1fuV8qCXl3NAABu0uuGOC0583.png-wh_500x0-wm_3 -wmp_4-s_2608373739.pn

is used for medium-sized and large-scale data applications. The serial collector is sufficient for most small applications, which require about 100M of memory on modern processors.41. In Java, when can objects be garbage collected?This object can be recycled when the object becomes inaccessible to applications that currently use the object.Is there a garbage collection in the permanent generation of 42.JVM?Garbage collection does not occur in a permanent generation, and if it is permanently ful

selector: directly based on the ID, CSS class name, element name to return the matching DOM elements. 2, hierarchical selector: Also known as the path selector, you can select the corresponding DOM element according to the path hierarchy. 3. Filter selector: Filter the relevant conditions on the previous basis to get the matching DOM elements. Question: Use jquery to set all the element borders on the page to a 2px wide dashed line? Answer: This is the time for the jquery selector to play, the

.equals (S2));Enter false because S2 is not of type string, and the Equals method of string is type-judged.3. What does the following code enter?"ABC"; String ("abc"); S2.intern (); System.out.println (S1 ==s2); The output False,intern () method returns a reference to the string object from the string pool, but since we have not assigned to S2,S2 no change, if the third line of code is S2 =S2.intern (), enter true.4. The following code will create several string objects.String ("Hello"); Stri

conserve bandwidth and the stability of script references, we use jquery files on the CDN, such as Google's jquery CDN service. However, if the jquery service on these cdns is not available, we can also switch to the jquery version of the local server by using the following code:HTML code --------------------------------------------------I'm a split line-------------------------------------------------------------- 6, how to use jquery implementation Click Button Pop up a dialog box?Answer: The

. Combining these two technologies with SVM is one of the reasons why SVM classifier is simple and powerful.Problem description A Gaussian core is usedTraining SVM (Support Vector machine), the test proves that if there are no two points in the same position in a given training set, there is a set of parameters {α1, ... αm, b} and parameter gamma make the SVM training error of 0. If we use the parameter gamma in question 1 to train a SVM that does not join the relaxation variable, w