The namespace contains numeric types that complement the numeric primitives, such as , , and , that are defined by the .NET Framework.

This namespace includes the following types: The structure, which is a nonprimitive integral type that supports arbitrarily large integers. An integral primitive such as or includes a MinValue and a MaxValue property, which define the lower bound and upper bound supported by that data type. In contrast, the structure has no lower or upper bound, and can contain the value of any integer. The structure, which represents a complex number. A complex number is a number in the form a + bi, where a is the real part, and b is the imaginary part.