4 files changed, 33 insertions, 34 deletions
diff --git a/spec/ruby/library/matrix/antisymmetric_spec.rb b/spec/ruby/library/matrix/antisymmetric_spec.rb
index 3eb0f8b726..200df703cb 100644
--- a/spec/ruby/library/matrix/antisymmetric_spec.rb
+++ b/spec/ruby/library/matrix/antisymmetric_spec.rb
@@ -1,37 +1,36 @@
 require_relative '../../spec_helper'
+
 require 'matrix'
 
-ruby_version_is "2.6" do
-  describe "Matrix#antisymmetric?" do
-    it "returns true for an antisymmetric Matrix" do
-      Matrix[[0, -2, Complex(1, 3)], [2, 0, 5], [-Complex(1, 3), -5, 0]].antisymmetric?.should be_true
-    end
+describe "Matrix#antisymmetric?" do
+  it "returns true for an antisymmetric Matrix" do
+    Matrix[[0, -2, Complex(1, 3)], [2, 0, 5], [-Complex(1, 3), -5, 0]].antisymmetric?.should be_true
+  end
 
-    it "returns true for a 0x0 empty matrix" do
-      Matrix.empty.antisymmetric?.should be_true
-    end
+  it "returns true for a 0x0 empty matrix" do
+    Matrix.empty.antisymmetric?.should be_true
+  end
 
-    it "returns false for non-antisymmetric matrices" do
-      [
-        Matrix[[1, 2, 3], [4, 5, 6], [7, 8, 9]],
-        Matrix[[1, -2, 3], [2, 0, 6], [-3, -6, 0]],  # wrong diagonal element
-        Matrix[[0, 2, -3], [2, 0, 6], [-3, 6, 0]]    # only signs wrong
-      ].each do |matrix|
-        matrix.antisymmetric?.should be_false
-      end
+  it "returns false for non-antisymmetric matrices" do
+    [
+      Matrix[[1, 2, 3], [4, 5, 6], [7, 8, 9]],
+      Matrix[[1, -2, 3], [2, 0, 6], [-3, -6, 0]],  # wrong diagonal element
+      Matrix[[0, 2, -3], [2, 0, 6], [-3, 6, 0]]    # only signs wrong
+    ].each do |matrix|
+      matrix.antisymmetric?.should be_false
     end
+  end
 
-    it "raises an error for rectangular matrices" do
-      [
-        Matrix[[0], [0]],
-        Matrix[[0, 0]],
-        Matrix.empty(0, 2),
-        Matrix.empty(2, 0),
-      ].each do |rectangular_matrix|
-        -> {
-          rectangular_matrix.antisymmetric?
-        }.should raise_error(Matrix::ErrDimensionMismatch)
-      end
+  it "raises an error for rectangular matrices" do
+    [
+      Matrix[[0], [0]],
+      Matrix[[0, 0]],
+      Matrix.empty(0, 2),
+      Matrix.empty(2, 0),
+    ].each do |rectangular_matrix|
+      -> {
+        rectangular_matrix.antisymmetric?
+      }.should raise_error(Matrix::ErrDimensionMismatch)
     end
   end
 end
diff --git a/spec/ruby/library/matrix/exponent_spec.rb b/spec/ruby/library/matrix/exponent_spec.rb
index a05826ab72..b76e18b4cd 100644
--- a/spec/ruby/library/matrix/exponent_spec.rb
+++ b/spec/ruby/library/matrix/exponent_spec.rb
@@ -34,7 +34,7 @@ describe "Matrix#**" do
       end
     end
 
-    ruby_version_is '3.0.2' do # https://bugs.ruby-lang.org/issues/17521
+    ruby_version_is '3.1.0' do # https://bugs.ruby-lang.org/issues/17521
       describe "that is 0" do
         it "returns the identity for square matrices" do
           m = Matrix[ [1, 1], [1, 1] ]
diff --git a/spec/ruby/library/matrix/multiply_spec.rb b/spec/ruby/library/matrix/multiply_spec.rb
index 585f268931..206868af92 100644
--- a/spec/ruby/library/matrix/multiply_spec.rb
+++ b/spec/ruby/library/matrix/multiply_spec.rb
@@ -1,4 +1,5 @@
 require_relative '../../spec_helper'
+
 require_relative 'fixtures/classes'
 require 'matrix'
 
@@ -22,8 +23,8 @@ describe "Matrix#*" do
 
   it "returns the result of multiplying the elements of self and a Bignum" do
     (@a * bignum_value).should == Matrix[
-      [9223372036854775808, 18446744073709551616],
-      [27670116110564327424, 36893488147419103232]
+      [18446744073709551616, 36893488147419103232],
+      [55340232221128654848, 73786976294838206464]
     ]
   end
 
diff --git a/spec/ruby/library/matrix/unitary_spec.rb b/spec/ruby/library/matrix/unitary_spec.rb
index af4b2bb442..c214ee9b2f 100644
--- a/spec/ruby/library/matrix/unitary_spec.rb
+++ b/spec/ruby/library/matrix/unitary_spec.rb
@@ -1,4 +1,5 @@
 require_relative '../../spec_helper'
+
 require 'matrix'
 
 describe "Matrix.unitary?" do
@@ -12,10 +13,8 @@ describe "Matrix.unitary?" do
     Matrix[[0, Complex(0, 1)], [Complex(0, 1), 0]].should.unitary?
   end
 
-  version_is((Matrix::const_defined?(:VERSION) ? Matrix::VERSION : "0.1.0"), "0.3.0") do
-    it "returns true for unitary matrices with a Complex and a negative #imag" do
-      Matrix[[0, Complex(0, 1)], [Complex(0, -1), 0]].should.unitary?
-    end
+  it "returns true for unitary matrices with a Complex and a negative #imag" do
+    Matrix[[0, Complex(0, 1)], [Complex(0, -1), 0]].should.unitary?
   end
 
   it "raises an error for rectangular matrices" do