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david

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  • red alert 95 frequently crash in windows 10 home edition?

    recently, i installed ra95, which is one of the most popular desktop pc game about 20 years ago, but i am unable to play well, because it always stuck and crash, maybe because directx version update these years and are thus not supported by ra95, could anybody give any hint and way of troubleshooting

    thanks

    1 AnswerSoftware3 months ago
  • encryption algorithm associated with bitcoin mining?

    hello

    I hear beside the sha256 hashing algorithm used to generate signature for bitcoin, there is still an encryption algorithm associated with bitcoin mining, my question is:first, what is that algorithm, second, what is the encryption algorithm used for

    thanks

  • 2d graphic designer tools for game design and development?

    hello

    could anyone recommend me 2d graphic designer tool and 2d animation builder tool for 2d game graphic production, since i want to make such a small game, what are the most popular such tools, like adobe illustrator and flash builder

    thanks

    1 AnswerDrawing & Illustration6 months ago
  • mathematical formulation of a series of polygonal manipulation in 3d computer graphics?

    hello, i want to build a small program that do 3d shape modeling using programming, i do not buy maya/3dmax/softimage/blender etc because to save money and practice programming, for i am still not very well familiar with 3d graphics, could anybody teach me math foundation of process such as tapor,circularize,warp,twist,extrude,bevel, so forth

    thanks

  • recommendation for books or papers over 3d geometric modeling in computer graphics?

    hello

    i am writing a small program in 3d that want to generate models in 3d using procedural method, i do not use maya and 3d max tool, but using programming, on one hand, to save money and practice programming, on the other hand, maya, 3dmax, softimage, blender so forth are not designed for procedural method, i still need hand creation and clumsy exporting process, could anybody give a book or papers about those topics such as polygonal manipulations

    thanks

    1 AnswerProgramming & Design7 months ago
  • asp.net core mistakes trying to add razor page for a web app?

    i followed the following instruction to try to build a demo web app, however, it show me mistakes

    https://docs.microsoft.com/en-us/aspnet/core/tutor...

    the razor type i try to add need a primary key, but i do have(code is not enough to be contained in yahoo) declared an id called id in my person Class

    what are the problems and how to fix it

  • cpp problems:instantiating class?

    hello, i used microsoft visual studio 2019 community c++ compiler ide to build a simple demo project, in declare class with header Calculator.h and class implementation code Calculator.cpp

    class Calculator

    {

    public:

    int Add(int a,int b){ return a+b;}

    long Multiply(int a, int b{return a*b;}

    }

    but when i try to instantiate and use the code, the intellisense do not sense there is the Calculator class exist, and i write statement using Calculator,it indicate me no such class exist, what are the problems and how to fix them

    }

  • unable to find my sql server express sample database through connection in c#?

    hello, recently i started an ado.net project using my visual studio community edition, i created a CommerceDBDemo database project and published it, and i started another ado.net project trying to connect to that db through 

        SqlConnection sqlconn=new SqlConnection();

        SqlConnectionStringBuilder sqlConnStringBuilder =new SqlConnectionStringBuilder();

         // connection string detail omited due to no cut and paste function on yahoo, and slow to type manually.

        sqlconn.open() //throw sql exception, saying failure to find and connect to database

    my question is, what are the problems, for example, if the database publishing is wrong or incomplete, anyway, thanks

    2 AnswersProgramming & Design11 months ago
  • NullReferenceException in C#?

    recently i write a small demo program in c# that throw a NullReferenceException, the code is unable to be contained in yahoo answer forum, so i show you a link of my question contained in another site

    https://www.udemy.com/course/the-complete-c-sharp-...

  • quora problem?

    my qoura account encounter difficulty, when i try to ask a question, i can only edit the title of the question, not the body and content in detail, what are the problems and how to fix them, like change in certain configuration, thanks

    2 AnswersYahoo Answers11 months ago
  • difficulty downloading asp.net and azure development template for visual studio 2017 community edition?

    i want to download asp.net and azure for my visual studio 2017 community edition on a laptop, but after i finish download and installation, (it instantly downloaded all content), when i try to start a asp.net or azure application, the visual studio do not contain these project template, what are the problems and how to fix them

    2 AnswersProgramming & Design11 months ago
  • what are website for poker image resource download for card game development?

    hello, i want to download some image files for my poker game, the image of club, spade, diamond and heart, all numbers and letters, 1-10, ace, king, queen and jack, is there such a website and what are they

    Gambling11 months ago
  • unity 3d asset download problems?

    i have downloaded a unity 2017.x personal edition and want to download asset for a demo game of educational purpose, but it always experience cases in which the asset was unable to download, or a large collection of assets whose first file can be downloaded but later stuck, what are the problems and how to fix them

  • stackexchange javascript blockout?

    recently, i registered a stackexchange account to ask questions about programming, but when i logged in and try to ask questions, it show me that the javascript have been blocked or failed to load, what is the problem and how do i fix it

    thanks

    1 AnswerProgramming & Design12 months ago
  • complex typed array and generic list in c#?

    i want to create an array of complex object, and add its elements to a generic list of the same type, but when i try to access and manipulate individual elements of the array(non generic), i always indicate me NullReferenceException, i cannot invoke object that are not instantiated, what is the problem and how to fix it?

    1 AnswerProgramming & Design12 months ago
  • NullReferenceException in c#?

    i write a program whose code is too large to be contained in yahoo answer forum, so i have to explain orally, i declare two classes DataItem and Dataset, DataItem class contain a data variable which is an array of double and a function called InitializeData()function, that assign length to array of data, i also declare a Dataset class that have an array of DataItem and a function called InitializeDataset that instiantiate member variable DataItems array by copying an inner variable with specified length to array, i create a program that simulate dataset that is initialized with many dataitems, and each dataitem with many double numbers, but it indicate me exception, referencing object that do not instantiate them, what is the problem and how do i fix it

    1 AnswerProgramming & Design12 months ago
  • difficulty downloading php on windows?

    i want to download php onto my windows for learning purpose, but it downloads too slowly and always failed in the midway, what could i do, and is there any other alternative location for download

    2 AnswersSoftware1 year ago
  • apache tomcat installation using java eclipse enterprise edition?

    i want to install my apache tomcat 5.x server on my desktop for development purpose of java server faces/facelet/servlet application, using java eclipse enterprise edition, however, it inform me that i am using wrong folder, some file or component is missing, what is the problem, what prerequisite are needed and in what folder by default

    thanks david

    2 AnswersProgramming & Design1 year ago
  • apache tomcat installation using java eclipse enterprise edition?

    i want to install my apache tomcat 5.x server on my desktop for development purpose of java server faces/facelet/servlet application, using java eclipse enterprise edition, however, it inform me that i am using wrong folder, some file or component is missing, what is the problem, what prerequisite are needed and in what folder by default

    thanks david

  • could anybody recommend me a downloadable free ebook for unity 3d programming?

    could anybody recommend me a ebook on programming unity 3d using c#, include advanced 3d programming topics such as texture, particle system, terrain, animation and so forth