diff --git a/tests/PhpSpreadsheetTests/Calculation/MathTrigTest.php b/tests/PhpSpreadsheetTests/Calculation/MathTrigTest.php
index 5875f86c..efc48f46 100644
--- a/tests/PhpSpreadsheetTests/Calculation/MathTrigTest.php
+++ b/tests/PhpSpreadsheetTests/Calculation/MathTrigTest.php
@@ -255,12 +255,9 @@ class MathTrigTest extends \PHPUnit_Framework_TestCase
 
     /**
      * @dataProvider providerMDETERM
-     * @group fail19
      */
     public function testMDETERM()
     {
-        $this->markTestIncomplete('TODO: This test should be fixed');
-
         $args = func_get_args();
         $expectedResult = array_pop($args);
         $result = call_user_func_array([MathTrig::class, 'MDETERM'], $args);
diff --git a/tests/data/Calculation/MathTrig/MDETERM.php b/tests/data/Calculation/MathTrig/MDETERM.php
index e12c4b69..961ebf70 100644
--- a/tests/data/Calculation/MathTrig/MDETERM.php
+++ b/tests/data/Calculation/MathTrig/MDETERM.php
@@ -19,27 +19,27 @@ return [
                 9,
             ],
         ],
-        6.6613381477509402E-16,
+        0,
     ],
     [
         [
             [
-                1.1000000000000001,
-                2.2000000000000002,
-                3.2999999999999998,
+                1.1,
+                2.2,
+                3.3,
             ],
             [
-                4.4000000000000004,
+                4.4,
                 5.5,
-                6.5999999999999996,
+                6.6,
             ],
             [
-                7.7000000000000002,
-                8.8000000000000007,
-                9.9000000000000004,
+                7.7,
+                8.8,
+                9.9,
             ],
         ],
-        1.61204383175573E-15,
+        0,
     ],
     [
         [
@@ -59,7 +59,7 @@ return [
                 90,
             ],
         ],
-        -4.2632564145606003E-12,
+        0,
     ],
     [
         [
@@ -117,30 +117,30 @@ return [
     [
         [
             [
-                0.20000000000000001,
+                0.2,
                 1,
             ],
             [
-                0.34999999999999998,
-                10.800000000000001,
+                0.35,
+                10.8,
             ],
         ],
-        1.8100000000000001,
+        1.81,
     ],
     [
         [
             [
-                0.20000000000000001,
+                0.2,
                 1,
-                -0.90000000000000002,
+                -0.9,
             ],
             [
-                0.34999999999999998,
-                10.800000000000001,
+                0.35,
+                10.8,
                 4,
             ],
             [
-                -3.1499999999999999,
+                -3.15,
                 5,
                 null,
             ],