Hello ,

I am doing a university project and I have some questions:
I am using a windows application to do complex calculation (civil engineering project), which library should be use to call (cos, sin,..and other mathematical functions).

Which library is used for drawing in visual studio.
How to open and draw in Autocad.
How to create and write in an excel 2003 file.
How to read parameters from a file.

Thank you.

Hi,

first of all these forums are about ASP.NET, not winforms. There are dedicated forums over at www.windowsclient.net for that.

Goodway:

which library should be use to call (cos, sin,..and other mathematical functions).

System.Math

Goodway:

Which library is used for drawing in visual studio.

System.Drawing

Goodway:

How to open and draw in Autocad.

Use google to search for the file format for autocad

Goodway:

How to create and write in an excel 2003 file.

You can use VSTO for that. It's a library from Microsoft to create Office documents for example.

Goodway:

How to read parameters from a file.

The File class has several methods available for you to accomplish this task.

Grz, Kris.