JuliaLang/julia — pull request #1808 by stevengj (2012-12-21 16:52:28+00:00)
Title: Faddeeva function tweaks

This patch removes an unnecessary let block around the Faddeeva wrapper definitions, and improves the error function documentation:

* Fixes a bug (missing sqrt) in the `dawson` documentation

* Notes the connection of erfcx to the Faddeeva function, in case users are looking for the latter. (There is no real need to provide both erfcx and the Faddeeva function separately, and the former is nicer since it produces real inputs for real outputs).

* Gives the explicit definitions of erf(x) and erfc(x) and notes that erf is defined for complex x.