spec/lib/function_spec.rb in dydx-0.1.41421 vs spec/lib/function_spec.rb in dydx-0.2.7000000

@@ -60,6 +60,11 @@
     expect(f(y)).to eq(sin(y))
 
     g(x) <= d/dx(f(x))
     expect(g(pi)).to eq(-1)
   end
+
+  it 'ex7' do
+    f(x) <= (1 + 1/x) ** x
+    expect(f(100000)).to eq(2.7182682371744895)
+  end
 end