Let's create a new project. This time, however, click on Visual Studio to make the project. So, select File > New and choose Project, not Web Site. In the dialog box that appears, select Visual C#. Rename the default Class Library to MathLibrary and then click on OK.
Your screen should look like the following screenshot:
6.18.1: Making a new Visual C# Class Library project in Visual Studio
So this is our namespace, as shown in Figure 6.18.2. As you can see, it's called MathLibrary, which, of course, is collapsible. Within it, we have a public class called Class1:
Figure 6.18.2: The start of our namespace for this project
