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tiddwaylll
tiddwaylll
Last Activity: Aug 20 '08, 01:15 PM
Joined: Jun 23 '08
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  • tiddwaylll
    started a topic Where to Find: .NET C# Numerical Library - Free and Easy to Implement
    in .NET

    Where to Find: .NET C# Numerical Library - Free and Easy to Implement

    Hi Hi,

    I am looking for a easy and free numerical library to implement. More important is to be free haha.

    The language/framework is in C#.NET.

    If you know of any, please point me in the right direction.


    EDIT : I am looking specifically for numerical integration and differentiation . Less on the linear algebra side.Thanks!

    Thanks
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    • tiddwaylll
      started a topic Graphing API for .NET (specifically C#)
      in .NET

      Graphing API for .NET (specifically C#)

      Hi,

      I am looking for a grid API. Preferably 3D. Its for a maths grid, Cartesian type. For example, I can add objects to points on the grid and find out the distances from each point to another point. Does anyone know of something like that?

      Thanks in advance
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      • tiddwaylll
        started a topic How to convert to visual basic from old qbasic?
        in Visual Basic

        How to convert to visual basic from old qbasic?

        Hi,

        I have a huge program written in old BASIC. In fact I don't really know what flavour its written in, looks like qbasic I think.

        I don't need to know what the program does, I just need to run it. It runs perfectly fine on powerbasic DOS 3.0 . But I dont have powerbasic and I dont want to buy it either.

        But I do have MS Visual Studio .NET 2008.
        And I created a console application, which pointed...
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        • tiddwaylll
          started a topic C matrix does funny things
          in C

          C matrix does funny things

          I once had a matrix working like this

          matrix[20][2]

          So, since its indexed with 0, I used them as matrix[i][0] or matrix[i][1].

          Then the other day, I forgot the 0 index, and used matrix[i][2].

          And it worked perfectly fine! And worse so, the program didn't work anymore when I revert that back to matrix[i][1]. Also matrix[i][0] now had ridiculous values inside.

          More importantly,...
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          • tiddwaylll
            replied to Modifying type precision
            in C
            Thanks for the reply.

            I should have thought of the subtraction earlier... But now I know better than to compare doubles precisions without thinking twice.

            Thanks!
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            • tiddwaylll
              started a topic Modifying type precision
              in C

              Modifying type precision

              Hi,

              I need to "cast" a double precision to just two decimal places.
              For example, if I have a precision 1.114688, I want to turn this to 1.11.

              BUT not permanently, just for compare cases.

              The problem is actually comparing two numbers, and I only want an estimate. When I write
              if(a==b)
              then it always gives false, since with that high precision a will never be equal to b....
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