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Computer Programming

A category for questions about computer programming and programming languages.

10,506 Questions

C coding for cooley tukey fft algorithm?

hi.... for DIT fft algorithm, refer to this link, it has c-code for that. http://cnx.org/content/m12016/latest/

Why is zero important in computers?

zero is important in computer because computer runs on binary language that is 0s and 1s it means that computer is off

How do you uses enums?

Enums are constant values. You use them when you want to limit the range of acceptable constants.

Can the system BIOS be reprogrammed to update its content?

You can flash the BIOS. I wouldn't recommend it, as it won't give much of an improvement UNLESS you're experiencing BSOD, crashing, etc. If this is the case you can go to your motherboard manufacturers website and they should have a BIOS update you can d/l.

What are the disadvantages of computer control?

It cant think by itself. All routines are programmed by a programmer and it wont be able to move beyond those boundaries. Yes i totaly agree

What is the rm command in Unix?

The rm command is used to delete a file or directory. Its syntax is

rm file or rm -r directory

Example:

rm myfile

rm -r /home/user/mystuff

What happens when you change the variables?

If you change the variables in a science experiment, you will probably get different results.

What are advantages of Computer Aided Learning?

Any time instruction - Human instructors have a limited capacity to be with you instructing you every hour of the day, a computer can be used to do exactly that. They will never get tired of repeating the same thing over and over through the use of video playback.

Automatic feedback - A computer can grade you immediately and let you know whether you got it right or wrong. It can always give you back good feedback. Some teachers may not always do that.

Enhanced help - A computer can utilize vast resources to give you help that a single teacher cannot.

Computer Examples - Computers can provide in depth, interactive simulations and examples that aids the learning in comprehending challenging topics. By using the software they can actively engage themselves and develop an understanding that would be difficult with static pictures.

What is a constant in qbasic?

A constant in any language is an instance of a data type for which the assigned value cannot be altered by the program. In the case of complex objects (particularly in object-oriented languages), the term constant applies to the logical representation of the object as viewed by the client, rather than the underlying representation which may mutate. For instance, an object can expose a constant accessor which could initialise a member upon first access, which means it must mutate that member even though the object's external state is currently constant with respect to the client. A programmer might do this when initialising a member would be a costly operation, but if the accessor is not invoked against the object then there is no cost. The cost is only paid when the client invokes the accessor for the first time.

When installing the Android SDK what is the purpose of creating a user variable using the environment variables in Windows?

The Android SDK requires that you add the following environment variable:

ANDROID_HOME = <installation location>\android-sdk-windows

This is used to determine where the SDK can be found.

In addition, it is recommended you also add the tools and platform-tools sub-folders to your PATH:

PATH = <existing path>;%ANDROID_HOME%\tools;%ANDROID_HOME%\platform-tools

Note how the path makes use of the ANDROID_HOME environment variable.

With these variables in place, you can more easily execute the commands contained therein without specifying the path to those commands.

What special precautions would you take as a systems analyst if you did not have a direct contact with the user?

Compile DETAILED notes of what the user wants the system to do, what data he expects to enter, what results he expects, and what errors should be generated if the input data isn't correct or complete.

Get everything in writing, with a clear scope of work and specific test criteria.

Really, it's MUCH better if you can talk directly to the user. Users are often idiots who don't really KNOW what they want or need.

What A collection of patches is called a bug true or false?

False. A collection of patches is usually known as an update. Updates are often intended to fix bugs as well as to add new features.

How do get error codes?

Go to the playstation 3 web site and select (support) on the left side of the page then select (error code) on right side of the page then input your code and sony will assist you in fixing the problem but most of the time you will be told to send in your ps3 (Dont due this without doing a little research it could save you time and money to solve this on your own).

post more questions about the problem give the message next time most of the codes come with a message this will make it easier for some one to help further easily.

hope this helped

SGT Weinbrenner

Advantages and disadvantages of each swimming stroke?

freestyle- fastest stroke and the one taught first however the breathing can be difficult to master when first learning it as you want to breath to the front, also you need a good leg kick to keep your body upright.

butterfly- second fastest, one of the hardest and usually taught last. you need a good rhythm and strength to pull yourself out of the water- that's why younger children ind it hard.

backstroke- third fastest, one of the first taught, quite easy to swim slowly as long as you have a fast kick and keep your head back. If you swim it faster then you need to bend your arm at 90 degrees under the water to get a good pull which is quite hard and many professionals wear a nose plug to stop water going up their nose.

breaststroke- slowest- and again one of the hardest to learn as there is quite a lot of components- taught before fly- there is a lot of resistance if swimming fast and you need to aquire a motion slightly like butterfly to be succesful. If you are swimming slow it is easy- e.g granny breastroke.

hope that helps :)

What is the coincidence of high paging traffic and low CPU utilization?

I'll answer this by what I'm assuming you mean. Paging files are used for two reason. 1) gain quick access to data your system most commonly needs. 2) to store instructions that are on hold (CACHE, RAM, also do this) until certain resources can be freed. By this very definition, you can formulate your answer. That being, it depends largely on the tasks your machine has on hand to accomplish. Don't get angry at my answer, it's SUCH a dynamic question. Well written code, will take this in consideration.

Try to manage the size of your pagefile yourself. I'll advise you NOT to allocate too much space for a pagefile. This file becomes VERY fragmented and can burden your disk and increase response time, in effect, slowing you down.

When your scaling your system, your baseline requirements should include your optimum expectations on CPU usage and paging dynamics. It all boils down to what's running on your machine.

...hutch

Is there stress in the Computer Programming industry?

Most of the programming/development positions that I've worked in have been very stressful but they have their moments. Since the stress is often project based it tends to be cyclical and increases and decreases dependant upon where you are in the development cycle. Additionally the company you work for, their ability to effectively plan ahead and the general work ethics of those you work with can either greatly increase or diminish the amount of stress involved.

Overall though, I'd say yes, like fleas on a dog.

What are the advantages of using 4gl?

Advantages:

1. Simplified the programming process.

2. Use nonprocedural languages that encourage users and programmers to specify the results they want, while the computers determines the sequence of instructions that will accomplish those results.

3. Use natural languages that impose no rigid grammatical rules

Disadvantages:

1. Less flexible that other languages

2. Programs written in 4GLs are generally far less efficient during program execution that programs in high-level languages. Therefore, their use is limited to projects that do not call for such efficiency.

Where is the invisable suit on poptrpica?

The invisible suit is in Spy.Go to the spy glass store and ask to get a eye exam.The letter the man points to click the letter facing the opposite direction.The man will then tell you to meet him in the second floor.Exit the store and jump up.There will be a door.Enter the door.The exam guy will be there.He'll give you the suit.

What Does a CAD program do?

CAD stands for "computer aided design". Typically it's a drafting application or an automated circuit board design or other automated designing product. Autocad is one of the most recognized name.

C.A.D is computer-aided-design and it means that you can create anything using computers !

CAD (computer aided design) was originally a 2D drafting application back in the 1970's. However, it is now fully integrated 3D engineering and architectural software which coordinates all engineering disciplines allowing for a fully coordinated designs of just about anything you can think of. In addition to creating engineering and architectural drawings, it can do bill of material take-offs from those drawings. CAD is widely used by the Department of Defense, Department of Transportation and engineering companies worldwide.