gnu: Add julia-fixedpointnumbers.

* gnu/packages/julia-xyz.scm (julia-fixedpointnumbers-0.6.1): New variable.

gnu/packages/julia-xyz.scm

@@ -813,3 +813,29 @@ categories (ordinal variables), optionally with missing values.")
     (synopsis "In-memory tabular data in Julia")
     (description "Tools for working with tabular data in Julia.")
     (license license:expat)))
+
+(define-public julia-fixedpointnumbers
+  (package
+    (name "julia-fixedpointnumbers")
+    (version "0.6.1")
+    (source
+     (origin
+       (method git-fetch)
+       (uri (git-reference
+             (url "https://github.com/JuliaMath/FixedPointNumbers.jl")
+             (commit (string-append "v" version))))
+       (file-name "FixedPointNumbers")
+       (sha256
+        (base32 "033s9gi94xs97kshy2mcx5mvdkigdf4aqgaa6qgq6kz4s6gbpa9r"))))
+    (propagated-inputs `(("julia-compat" ,julia-compat)))
+    (build-system julia-build-system)
+    (home-page "https://github.com/JuliaMath/FixedPointNumbers.jl")
+    (synopsis "Fixed point types for julia")
+    (description "This library implements fixed-point number types.  A
+fixed-point number represents a fractional, or non-integral, number.  In
+contrast with the more widely known floating-point numbers, with fixed-point
+numbers the decimal point doesn't \"float\": fixed-point numbers are
+effectively integers that are interpreted as being scaled by a constant
+factor.  Consequently, they have a fixed number of digits (bits) after the
+decimal (radix) point.")
+    (license license:expat)))