This is the F# PowerPack library, based on the F# PowerPack code drop under the OSS approved Apache 2.0 license from http://fsharppowerpack.codeplex.com/.

These components are replicated in FSharpx:
*Quotations to Expression Tree Bridge
*Async extensions to WebClient, WebRequest and File
*Lazy module
*ResizeArray module
*LazyList

These components are replicated in Math.Net Numerics:
*Complex
*BigRational