Fix float comparison solution (empa-scientific-it#229)

yakutovicha · web-flow · commit e419b84c0dda · 2024-05-03T11:01:44.000+02:00
diff --git a/basic_datatypes.ipynb b/basic_datatypes.ipynb
@@ -646,6 +646,8 @@
    },
    "outputs": [],
    "source": [
+    "import math\n",
+    "\n",
     "a = 0.1 + 0.2\n",
     "b = 0.3\n",
     "print(f\"Is {a} equal to {b}? {a == b}\")\n",
@@ -2203,7 +2205,6 @@
    ]
   },
   {
-   "attachments": {},
    "cell_type": "markdown",
    "metadata": {},
    "source": [
@@ -2739,7 +2740,7 @@
    "name": "python",
    "nbconvert_exporter": "python",
    "pygments_lexer": "ipython3",
-   "version": "3.10.13"
+   "version": "3.11.1"
   },
   "vscode": {
    "interpreter": {
diff --git a/tutorial/tests/test_basic_datatypes.py b/tutorial/tests/test_basic_datatypes.py
@@ -90,7 +90,7 @@ def test_quadratic_equation(
 
 
 def reference_a_plus_b_equals_c(a: float, b: float, c: float) -> bool:
-    return a + b == c
+    return math.isclose(a + b, c)
 
 
 @pytest.mark.parametrize(
@@ -103,6 +103,7 @@ def reference_a_plus_b_equals_c(a: float, b: float, c: float) -> bool:
         (23.1, 1.8, 14.2),
         (-10.5, 7.4, 84),
         (1e-5, 3.5e-5, 2.5),
+        (0.1, 0.2, 0.3),
     ],
 )
 def test_a_plus_b_equals_c(
