diff --git a/Math/Topology/MetricsND.php b/Math/Topology/MetricsND.php
index 772964bdd..d892711a9 100755
--- a/Math/Topology/MetricsND.php
+++ b/Math/Topology/MetricsND.php
@@ -52,7 +52,7 @@ final class MetricsND
      */
     public static function manhattan(array $a, array $b) : float
     {
-        if (\count($a) !== \count($b)) {
+        if (\count($a) > \count($b)) {
             throw new InvalidDimensionException(\count($a) . 'x' . \count($b));
         }
 
@@ -78,6 +78,10 @@ final class MetricsND
      */
     public static function euclidean(array $a, array $b) : float
     {
+        if (\count($a) > \count($b)) {
+            throw new InvalidDimensionException(\count($a) . 'x' . \count($b));
+        }
+
         $dist = 0.0;
         foreach ($a as $key => $e) {
             $dist += \abs($e - $b[$key]) ** 2;
@@ -94,10 +98,16 @@ final class MetricsND
      *
      * @return float
      *
+     * @throws InvalidDimensionException
+     *
      * @since 1.0.0
      */
     public static function cosine(array $a, array $b) : float
     {
+        if (\count($a) > \count($b)) {
+            throw new InvalidDimensionException(\count($a) . 'x' . \count($b));
+        }
+
         $dotProduct = 0;
         foreach ($a as $id => $_) {
             $dotProduct += $a[$id] * $b[$id];
@@ -138,7 +148,7 @@ final class MetricsND
      */
     public static function chebyshev(array $a, array $b) : float
     {
-        if (\count($a) !== \count($b)) {
+        if (\count($a) > \count($b)) {
             throw new InvalidDimensionException(\count($a) . 'x' . \count($b));
         }
 
@@ -167,7 +177,7 @@ final class MetricsND
      */
     public static function minkowski(array $a, array $b, int $lambda) : float
     {
-        if (\count($a) !== \count($b)) {
+        if (\count($a) > \count($b)) {
             throw new InvalidDimensionException(\count($a) . 'x' . \count($b));
         }
 
@@ -195,7 +205,7 @@ final class MetricsND
      */
     public static function canberra(array $a, array $b) : float
     {
-        if (\count($a) !== \count($b)) {
+        if (\count($a) > \count($b)) {
             throw new InvalidDimensionException(\count($a) . 'x' . \count($b));
         }
 
@@ -223,7 +233,7 @@ final class MetricsND
      */
     public static function brayCurtis(array $a, array $b) : float
     {
-        if (\count($a) !== \count($b)) {
+        if (\count($a) > \count($b)) {
             throw new InvalidDimensionException(\count($a) . 'x' . \count($b));
         }
 
@@ -253,7 +263,7 @@ final class MetricsND
      */
     public static function angularSeparation(array $a, array $b) : float
     {
-        if (\count($a) !== \count($b)) {
+        if (\count($a) > \count($b)) {
             throw new InvalidDimensionException(\count($a) . 'x' . \count($b));
         }
 
diff --git a/tests/Math/Topology/MetricsNDTest.php b/tests/Math/Topology/MetricsNDTest.php
index 074b865de..0b6bb4cdb 100755
--- a/tests/Math/Topology/MetricsNDTest.php
+++ b/tests/Math/Topology/MetricsNDTest.php
@@ -126,7 +126,7 @@ final class MetricsNDTest extends \PHPUnit\Framework\TestCase
     {
         $this->expectException(\phpOMS\Math\Matrix\Exception\InvalidDimensionException::class);
 
-        MetricsND::manhattan([3, 6, 4], [4, 6, 8, 3]);
+        MetricsND::manhattan([4, 6, 8, 3], [3, 6, 4]);
     }
 
     #[\PHPUnit\Framework\Attributes\Group('framework')]
@@ -135,7 +135,7 @@ final class MetricsNDTest extends \PHPUnit\Framework\TestCase
     {
         $this->expectException(\phpOMS\Math\Matrix\Exception\InvalidDimensionException::class);
 
-        MetricsND::euclidean([3, 6, 4], [4, 6, 8, 3]);
+        MetricsND::euclidean([4, 6, 8, 3], [3, 6, 4]);
     }
 
     #[\PHPUnit\Framework\Attributes\Group('framework')]
@@ -144,7 +144,7 @@ final class MetricsNDTest extends \PHPUnit\Framework\TestCase
     {
         $this->expectException(\phpOMS\Math\Matrix\Exception\InvalidDimensionException::class);
 
-        MetricsND::chebyshev([3, 6, 4], [4, 6, 8, 3]);
+        MetricsND::chebyshev([4, 6, 8, 3], [3, 6, 4]);
     }
 
     #[\PHPUnit\Framework\Attributes\Group('framework')]
@@ -153,7 +153,7 @@ final class MetricsNDTest extends \PHPUnit\Framework\TestCase
     {
         $this->expectException(\phpOMS\Math\Matrix\Exception\InvalidDimensionException::class);
 
-        MetricsND::minkowski([3, 6, 4], [4, 6, 8, 3], 2);
+        MetricsND::minkowski([4, 6, 8, 3], [3, 6, 4], 2);
     }
 
     #[\PHPUnit\Framework\Attributes\Group('framework')]
@@ -162,7 +162,7 @@ final class MetricsNDTest extends \PHPUnit\Framework\TestCase
     {
         $this->expectException(\phpOMS\Math\Matrix\Exception\InvalidDimensionException::class);
 
-        MetricsND::canberra([3, 6, 4], [4, 6, 8, 3]);
+        MetricsND::canberra([4, 6, 8, 3], [3, 6, 4]);
     }
 
     #[\PHPUnit\Framework\Attributes\Group('framework')]
@@ -171,7 +171,7 @@ final class MetricsNDTest extends \PHPUnit\Framework\TestCase
     {
         $this->expectException(\phpOMS\Math\Matrix\Exception\InvalidDimensionException::class);
 
-        MetricsND::cosine([3, 6, 4], [4, 6, 8, 3]);
+        MetricsND::cosine([4, 6, 8, 3], [3, 6, 4]);
     }
 
     #[\PHPUnit\Framework\Attributes\Group('framework')]
@@ -180,7 +180,7 @@ final class MetricsNDTest extends \PHPUnit\Framework\TestCase
     {
         $this->expectException(\phpOMS\Math\Matrix\Exception\InvalidDimensionException::class);
 
-        MetricsND::brayCurtis([3, 6, 4], [4, 6, 8, 3]);
+        MetricsND::brayCurtis([4, 6, 8, 3], [3, 6, 4]);
     }
 
     #[\PHPUnit\Framework\Attributes\Group('framework')]
@@ -189,7 +189,7 @@ final class MetricsNDTest extends \PHPUnit\Framework\TestCase
     {
         $this->expectException(\phpOMS\Math\Matrix\Exception\InvalidDimensionException::class);
 
-        MetricsND::angularSeparation([3, 6, 4], [4, 6, 8, 3]);
+        MetricsND::angularSeparation([4, 6, 8, 3], [3, 6, 4]);
     }
 
     #[\PHPUnit\Framework\Attributes\Group('framework')]
@@ -198,6 +198,6 @@ final class MetricsNDTest extends \PHPUnit\Framework\TestCase
     {
         $this->expectException(\phpOMS\Math\Matrix\Exception\InvalidDimensionException::class);
 
-        MetricsND::hamming([3, 6, 4], [4, 6, 8, 3]);
+        MetricsND::hamming([4, 6, 8, 3], [3, 6, 4]);
     }
 }