Computer Science Forum

Hi, i am new to programming and have self taut myself PHP. I am very comfortable with PHP and know the gist of things. But my real set back is the terminology and logical or theory side of programming. Where must i begin to learn this, or what websites or …

Hi everyone, I am doing my final year in BSc Computing and Information systems. I am looking for some advice on my chosen project. Its about a mobile based sign translator.Photos that contain some text in foreign language taken using mobile camera is sent to a work station where the …

What is the difference between Standard and Non-standard Wiener process?

the top most left (corner) is the starting point. then it will travel. the gray areas are the traveled areas. In this 2 dimensional array how will i measure the diagonality of these traveled paths?

Hey guys, help me with my homework ! I am taking CIT 160 and for my first assignment I am to ask 5 family members, friends ,strangers etc 5 security questions which i will have to investigate further and write a report on, so I came to daniweb! please answer …

Im planning on creating a program that stores & retrieves data (names and addr. 4 now)which lang will do this (gui too) and will give room to make d program more complex (as i get better)i already know a little java and python your suggestions,advise will be appreciated(ive got roughly …

I need to find the exact operation count and i got confused over the below 2 Is a=b+c+d considered as one instruction or 2 instructions? Similarly is a+=b one instruction or 2?

Hi there everyone :) Recently, I started to feel a strong need to learn a scripting language. The question is which. Right now I'm pondering between Ruby and Python. The conditions are that it should be high-level, object or object oriented and not a functional language. What say you, geeks? …

Any file's primary header contains some things which are common to all operating system like entry point function, time stamp etc and then other things. What is the purpose of keeping this time stamp in the header. Thanks

Hi there, My question is about 2^(2n) = O(2^n) ; is it true or false? and we know that: [B]f(n) = O(g(n))[/B] if positive integers [B]c[/B] and [B]n0[/B] exist such that for every [B]n >= n0[/B] : [B]f(n) <= c*g(n)[/B] Based on the definition, I'm thinking the above statement is …

I am right or wrong? there is no such thing as Artificial intelligence since humans are the ones who have the program the robots or machine to do a specific set of instructions so its basically just human intelligence theres nothing artificial about it

I got this question in a competitive exam i wrote today...n i was just curious if my answer was right. The Question is : Let G be a complete undirected graph on 6 vertices. If vertices of G are labelled, then the number of distinct cycles of length 4 in …

My teacher has just teach me about complexity of algorithm and he has gave me some homework. I have solve almost all except for this ex: Consider a robot arm that is fixed at one end. The arm contains two elbows at each of which it is possible to rotate …

Hi all sorry if this is in the wrong catogory i cant find were to put this thread Right my question is? [B]How do you Test a Toaster[/B] using Quality assurance knowleadge whats steps do you take what requirements should i make what test cases should i use... obvilously am …

I have a test tomorrow about some few things I just can't quite understand/grasp to well. I forgot to ask these questions in class which is something unintelligent to do. If the computer uses 8 bits to represent a real number, assume the radix point is always between the 3rd …

Is this proof right?? Claim: Let #0(w) and #1(w) be the number of 0s and 1s in w, respectively. Then A = {uv ∈ {0, 1}∗ : |u| = |v|, #0(u) = #1(v), and #0(v) = #1(u)} is not a regular language. Proof : Say there is some pumping length …

I have my first assignment for structured and object oriented problem solving. This is the problem and I wrote a program that had to include modules. I wanted to find out if what i did had any errors or if it is even written correctly at all. If its not …

Hello, what the title says, I'm really confused with recursion. I understand the basics like what we actually call a recursive method (a method that calls itself within its body) but I can't seem to understand how it is used (especially the factorial example). OK, the following example is the …

which is the best programming language between java and .net.

hey all today my university teacher give me a assignment about computer fundamental . i have to write about input and output all device . can anyone give me any link to download it or any website to get idea about it

i am trying to make an application which would predict the value of investments such as shares based on the past values, and help the user to choose the better option. want some suggestions on the fuzzy algorithms that i can use in my project. it would be a form …

Pick a "c" and "n" for the problem below. f(n) = 2nlgn, g(n) = n^2-n My answer is below, but I am not sure if I am correct. I've been trying to figure out this same problem for a while. [B]The real solution is at the bottom, but I don't …

Do you have to be like a master programmer in a certain language to land a job in this field?

Hi everyone This year i have to develop my final year project. Actually I'm thinking about a software that help people with music. it has several different parts as well as a "Testing" part. For this one I want to have sound input from the user via microphone and then …

Hi, I want to know what Windows language can make ALMOST all sorts of automations like : [I]- sending keys, to a focused window ; - sending mouse clicks to specific coordinates in a window ; - finding if a window exists, by name ; - set it to be …

Hello forum, Vaironl here. I have a question, which has been bothering me quite a bit for a while now. I would like to say, I love programming. Making UI's, making desktop and mobile applications. I started to program recently about 1 year now. I'm going to college with a …

designing a pushdown automata for the language a^n b c^(n+2), n>0 I have been asked to implement the automata for the above language .. please help? I tried popping a 2 (c)s everytime I push an (a) on to the stack but it seems not to work with odd number …

Hi guys. I need some help with this flowchart. Write a program that controls an elevator in a three-story building. Inside the elevator, there are three buttons to make the elevator go to particular floors. Outside the elevator, each floor has one or two buttons to summon the elevator to …

I have a final coming up and the professor has hinted in class that there would be a question on how to make the primitive min operation in Big-O(1). I know that its capable of and how it works in Big-O(log n). I have idea that it will involve the …

Hypotheticaly, if you have a large object that is needed almost everwhere within a program and this object is used for accessing data. Is it better to pass the object by referance into each function that needs it, or to make the object static? For some context, I am most …

can any one suggest me to sort million numbers(distinct)

Okay, I have been thinking about writing a GUI toolkit recently, and after doing some searching on the web, I haven't found much on it it's self. But I believe I have the basic idea down, and I was wondering if you guys who maybe know about this could let …

Hello all! I'm currently enrolled in an Algorithms course at my local university and have a question over an assignment. Here is the assignment: Assignment 1 1. Give a big-Oh notation, in terms of n and m, of the running time of the following procedures, including your explanations: a. Procedure1(n) …

hello people of DaniWeb! This is my first post.I gotta tell you that my head is going crazy lately.I am 18. So what's the case? Alright last year I gave some really really really hard exams in my country Greece.I suceeded. I got into the university at the Department of …

How do I represent a use case that has no actor? I'm doing the preliminary work for an IT system. I'm trying to list up all the actors so that I can create all the use cases that I need; however, there are things like background processes that must run …

Firstly, I am not sure if this is the best place to ask the query. If no, please move it to the correct subforum. Now, coming to my doubt, an assembler converts assembly language into opcodes, right? Now, to perform the conversion, assembler needs a certain algorithm. Whats the algorithm …

Hi everybody, First, i posted this here because i don't know what this is. Numbers like these : 0x000 0x010 0x011 0x040 0x0C1 0x200 0x181 What are they ? binary ? Thanks

Hi! I've got an exercise regarding 8085 interrupts. I have a 8085 microprocessor whose memory addresses from 0024h to 003Fh are the following 24 C3 25 00 26 FF 27 00 28 C3 29 00 2A F5 2B 00 2C C3 2D 80 2E F5 2F 00 30 C3 31 …

Was there any specific reason IBM decided to start loading BIOS into memory from 640k rather than from the beginning( 0th byte) ?I tried searching on the Internet but did not get a satisfactory answer.

What software is used to record interaction with the my computer? I have seen this from time to time on YouTube where a software engineer or a graphic designer wants to record an instructional lesson, he can record this computer interaction for later playback. How is this done?

Hi there, I am studying software engineering on my 3rd year and from time to time I think about the job I am gonna do during rest of my life.As a result I look at the trends of todays IT and application development world. There is a significant shift from …

im trying to study this paper [url]http://ww2.cs.mu.oz.au/~tim/pubs/austai2009.pdf[/url] its all about putting proper capitalization and punctuation in an english text. As I was reading it I encountered this word, lemma. I searched it on google and found ambigous results. It came to my mind that it must be lemmatization. But lemmatization …

i'm trying to study this paper: [url]http://db.grinnell.edu/sigcse/iticse2007/Program/viewAcceptedProposal.asp?sessionType=paper&sessionNumber=113[/url] it has the 'linearization' in its title. i just want to know what is its meaning. i searched google but it gave me something like calculus which i dont get. please help me. thank you.

Hi I need to prove the following statements: 1) for any a>1, and any b, a^n ∈ ω(n^b). We have to prove f(n) > C.g(n) for all C>0, n0>0 and n>=n0 a^n > C . n^b Since a > 1 , I think a >= n and a > b …

im a total newbie and i dont get this: i dont get this flat text file my professor is talking about. I read from wikipedia that: A "flat file" is a plain text or mixed text and binary file which usually contains one record per line[2] or 'physical' record (example …

Hi, I've got a main project coming up and i've been thinking about creating a non english based programming language,ie in my mothertongue malayalam. But i'm not sure if its feasible. Also, should it have its own programming syntax or emulate some other programming language like C? Can someone lead …

I hope I'm posting in the right forum :) I'm primarily concerned with C compilers and sun's JDK, but general info is more than welcome (Documentation for self-education as well). Well, if i wrote a program like [CODE] int i = 5 printf("i is $d", i); [/CODE] Would i=5 be …

If this is not a right place to post this article, please move it to another way, thank you very much. Sometimes(or always) giving a name to a class or variable is not an easy job, I want to make it expressive and short, how do you solve this kind …

So when you download a file via the internet . like lets say (a new firefox browser) from the internet what actually happens in that process of transfering bytes and information? could anyone post any useful preferrably long detailed explanations?

Hi, just want to learn from our expert friends here, during software development, how do you determine the exact system specifications/requirements for your programs? Any help would be greatly appreciated. Thanks :)