05/17: gnu: Add ruby-matrix.

[guix-commits]

apteryx pushed a commit to branch master
in repository guix.

commit 2dd677d0fce7337afe9fdc45d0bac8f8cfd91d89
Author: Maxim Cournoyer <maxim.cournoyer@gmail.com>
AuthorDate: Fri Jan 6 12:21:48 2023 -0500

    gnu: Add ruby-matrix.
    
    * gnu/packages/ruby.scm (ruby-matrix): New variable.
---
 gnu/packages/ruby.scm | 25 +++++++++++++++++++++++++
 1 file changed, 25 insertions(+)

diff --git a/gnu/packages/ruby.scm b/gnu/packages/ruby.scm
index b4fb4bf141..da255b4d9a 100644
--- a/gnu/packages/ruby.scm
+++ b/gnu/packages/ruby.scm
@@ -11233,6 +11233,31 @@ Ruby yaml library.")
     (home-page "https://github.com/Pryz/yaml-lint";)
     (license license:expat)))
 
+(define-public ruby-matrix
+  (package
+    (name "ruby-matrix")
+    (version "0.4.2")
+    (source (origin
+              (method git-fetch)        ;for tests
+              (uri (git-reference
+                    (url "https://github.com/ruby/matrix";)
+                    (commit (string-append "v" version))))
+              (file-name (git-file-name name version))
+              (sha256
+               (base32
+                "1asxr0jzh39lk5f8a9wm5avykrcy0v2wgd1bl3cszjczh99xy5k2"))))
+    (build-system ruby-build-system)
+    (synopsis "@code{Matrix} and @code{Vector} classes implementation for 
Ruby")
+    (description "This Ruby library provides an implementation of the
+@code{Matrix} and @code{Vector} classes.  The @code{Matrix} class represents a
+mathematical matrix.  It provides methods for creating matrices, operating on
+them arithmetically and algebraically, and determining their mathematical
+properties (trace, rank, inverse, determinant, eigensystem, etc.).  The
+@code{Vector} class represents a mathematical vector, which is useful in its
+own right, and also constitutes a row or column of a @code{Matrix}.")
+    (home-page "https://github.com/ruby/matrix";)
+    (license license:bsd-2)))
+
 (define-public ruby-mercenary
   (package
     (name "ruby-mercenary")