branch master updated (b4c400a -> ec8c7e4)

[Leo Famulari]

lfam pushed a change to branch master
in repository guix.

      from  b4c400a   gnu: Add xscreensaver.
       new  ec8c7e4   gnu: Add r-pracma.

The 1 revisions listed above as "new" are entirely new to this
repository and will be described in separate emails.  The revisions
listed as "adds" were already present in the repository and have only
been added to this reference.


Summary of changes:
 gnu/packages/maths.scm |   20 ++++++++++++++++++++
 1 files changed, 20 insertions(+), 0 deletions(-)