| Name | Description | Type | Package | Framework |
| IntegerRing | The IntegerRing class encapsulates the ring of integer numbers. | Class | JSci.maths.fields | JSCI |
| Field | This interface defines a field. | Interface | JSci.maths.fields | JSCI |
| Field .Member | This interface defines a member of a field. | Interface | JSci.maths.fields.Field | JSCI |
| ComplexField | The ComplexField class encapsulates the field of complex numbers. | Class | JSci.maths.fields | JSCI |
| RealField | The RealField class encapsulates the field of real numbers. | Class | JSci.maths.fields | JSCI |
| Ring | This interface defines a ring. | Interface | JSci.maths.fields | JSCI |
| Ring .Member | This interface defines a member of a ring. | Interface | JSci.maths.fields.Ring | JSCI |