This is a macOS framework implementing advanced numeric data types for the Swift 3 programming language. The current version provides three new numeric types:

1. BigInt: arbitrary-precision signed integers
2. Rational: signed rational numbers
3. Complex: complex floating-point numbers

Requirements: Xcode 8.3/Swift Package Manager, Swift 3.1

BigInt objects are immutable, signed, arbitrary-precision integers that can be used as a drop-in replacement for the existing integer types of Swift 3. Struct BigInt defines all the standard arithmetic integer operations and implements the corresponding protocols defined in the standard library.

Struct Rational<T> defines immutable, rational numbers based on an existing signed integer type T, like Int32, Int64, or BigInt. A rational number is a signed number that can be expressed as the quotient of two integers a and b: a / b.

Struct Complex<T> defines complex numbers based on an existing floating point type T, like Float or Double. A complex number consists of two components, a real part re and an imaginary part im and is typically written as: re + im * i where i is the imaginary unit.