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author | marcandre <marcandre@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2011-07-01 06:10:40 +0000 |
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committer | marcandre <marcandre@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2011-07-01 06:10:40 +0000 |
commit | 376b8251271da10ff3571b9a15c25333bb4492bc (patch) | |
tree | 95b2aba8da9527ba989706632a2814bd5d9d7c6e /lib/matrix.rb | |
parent | f4dda52025433e232f931ffa1cb0473684128a5a (diff) | |
download | ruby-376b8251271da10ff3571b9a15c25333bb4492bc.tar.gz |
* lib/matrix: Add Matrix#round
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@32350 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Diffstat (limited to 'lib/matrix.rb')
-rw-r--r-- | lib/matrix.rb | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/lib/matrix.rb b/lib/matrix.rb index 3242cde9b2..12f99925bc 100644 --- a/lib/matrix.rb +++ b/lib/matrix.rb @@ -89,6 +89,7 @@ end # * <tt> #determinant </tt> # * <tt> #det </tt> # * <tt> #rank </tt> +# * <tt> #round </tt> # * <tt> #trace </tt> # * <tt> #tr </tt> # * <tt> #transpose </tt> @@ -1125,6 +1126,12 @@ class Matrix rank end + # Returns a matrix with entries rounded to the given precision + # (see Float#round) + # + def round(ndigits=0) + map{|e| e.round(ndigits)} + end # # Returns the trace (sum of diagonal elements) of the matrix. |