1 files changed, 12 insertions, 15 deletions
diff --git a/spec/ruby/library/matrix/lup_decomposition/u_spec.rb b/spec/ruby/library/matrix/lup_decomposition/u_spec.rb
index cd884b88ec..ca3dfc1f00 100644
--- a/spec/ruby/library/matrix/lup_decomposition/u_spec.rb
+++ b/spec/ruby/library/matrix/lup_decomposition/u_spec.rb
@@ -1,21 +1,18 @@
 require_relative '../../../spec_helper'
+require 'matrix'
 
-ruby_version_is ""..."3.1" do
-  require 'matrix'
-
-  describe "Matrix::LUPDecomposition#u" do
-    before :each do
-      @a = Matrix[[7, 8, 9], [14, 46, 51], [28, 82, 163]]
-      @lu = Matrix::LUPDecomposition.new(@a)
-      @u = @lu.u
-    end
+describe "Matrix::LUPDecomposition#u" do
+  before :each do
+    @a = Matrix[[7, 8, 9], [14, 46, 51], [28, 82, 163]]
+    @lu = Matrix::LUPDecomposition.new(@a)
+    @u = @lu.u
+  end
 
-    it "returns the second element of to_a" do
-      @u.should == @lu.to_a[1]
-    end
+  it "returns the second element of to_a" do
+    @u.should == @lu.to_a[1]
+  end
 
-    it "returns an upper triangular matrix" do
-      @u.upper_triangular?.should be_true
-    end
+  it "returns an upper triangular matrix" do
+    @u.upper_triangular?.should be_true
   end
 end