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-rw-r--r--spec/ruby/core/complex/conjugate_spec.rb10
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diff --git a/spec/ruby/core/complex/conjugate_spec.rb b/spec/ruby/core/complex/conjugate_spec.rb
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+++ b/spec/ruby/core/complex/conjugate_spec.rb
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+require_relative '../../spec_helper'
+
+describe "Complex#conjugate" do
+ it "returns the complex conjugate: conj a + bi = a - bi" do
+ Complex(3, 5).conjugate.should == Complex(3, -5)
+ Complex(3, -5).conjugate.should == Complex(3, 5)
+ Complex(-3.0, 5.2).conjugate.should be_close(Complex(-3.0, -5.2), TOLERANCE)
+ Complex(3.0, -5.2).conjugate.should be_close(Complex(3.0, 5.2), TOLERANCE)
+ end
+end