diff --git a/src/PhpSpreadsheet/Calculation/Calculation.php b/src/PhpSpreadsheet/Calculation/Calculation.php
index 31ed497e..c4473498 100644
--- a/src/PhpSpreadsheet/Calculation/Calculation.php
+++ b/src/PhpSpreadsheet/Calculation/Calculation.php
@@ -1624,12 +1624,12 @@ class Calculation
         ],
         'MAX' => [
             'category' => Category::CATEGORY_STATISTICAL,
-            'functionCall' => [Statistical\Maximum::class, 'MAX'],
+            'functionCall' => [Statistical\Maximum::class, 'max'],
             'argumentCount' => '1+',
         ],
         'MAXA' => [
             'category' => Category::CATEGORY_STATISTICAL,
-            'functionCall' => [Statistical\Maximum::class, 'MAXA'],
+            'functionCall' => [Statistical\Maximum::class, 'maxA'],
             'argumentCount' => '1+',
         ],
         'MAXIFS' => [
@@ -1669,12 +1669,12 @@ class Calculation
         ],
         'MIN' => [
             'category' => Category::CATEGORY_STATISTICAL,
-            'functionCall' => [Statistical\Minimum::class, 'MIN'],
+            'functionCall' => [Statistical\Minimum::class, 'min'],
             'argumentCount' => '1+',
         ],
         'MINA' => [
             'category' => Category::CATEGORY_STATISTICAL,
-            'functionCall' => [Statistical\Minimum::class, 'MINA'],
+            'functionCall' => [Statistical\Minimum::class, 'minA'],
             'argumentCount' => '1+',
         ],
         'MINIFS' => [
diff --git a/src/PhpSpreadsheet/Calculation/Database/DMax.php b/src/PhpSpreadsheet/Calculation/Database/DMax.php
index e84a0bfc..9c5c7301 100644
--- a/src/PhpSpreadsheet/Calculation/Database/DMax.php
+++ b/src/PhpSpreadsheet/Calculation/Database/DMax.php
@@ -39,7 +39,7 @@ class DMax extends DatabaseAbstract
             return null;
         }
 
-        return Maximum::MAX(
+        return Maximum::max(
             self::getFilteredColumn($database, $field, $criteria)
         );
     }
diff --git a/src/PhpSpreadsheet/Calculation/Database/DMin.php b/src/PhpSpreadsheet/Calculation/Database/DMin.php
index 4398a7c3..e7b473a7 100644
--- a/src/PhpSpreadsheet/Calculation/Database/DMin.php
+++ b/src/PhpSpreadsheet/Calculation/Database/DMin.php
@@ -39,7 +39,7 @@ class DMin extends DatabaseAbstract
             return null;
         }
 
-        return Minimum::MIN(
+        return Minimum::min(
             self::getFilteredColumn($database, $field, $criteria)
         );
     }
diff --git a/src/PhpSpreadsheet/Calculation/Database/DProduct.php b/src/PhpSpreadsheet/Calculation/Database/DProduct.php
index 2e10fb5f..35e3d479 100644
--- a/src/PhpSpreadsheet/Calculation/Database/DProduct.php
+++ b/src/PhpSpreadsheet/Calculation/Database/DProduct.php
@@ -38,7 +38,7 @@ class DProduct extends DatabaseAbstract
             return null;
         }
 
-        return MathTrig\Product::evaluate(
+        return MathTrig\Operations::product(
             self::getFilteredColumn($database, $field, $criteria)
         );
     }
diff --git a/src/PhpSpreadsheet/Calculation/MathTrig/Subtotal.php b/src/PhpSpreadsheet/Calculation/MathTrig/Subtotal.php
index 48ba8177..2edb86f7 100644
--- a/src/PhpSpreadsheet/Calculation/MathTrig/Subtotal.php
+++ b/src/PhpSpreadsheet/Calculation/MathTrig/Subtotal.php
@@ -55,8 +55,8 @@ class Subtotal
         1 => [Statistical\Averages::class, 'average'],
         [Statistical\Counts::class, 'COUNT'], // 2
         [Statistical\Counts::class, 'COUNTA'], // 3
-        [Statistical\Maximum::class, 'MAX'], // 4
-        [Statistical\Minimum::class, 'MIN'], // 5
+        [Statistical\Maximum::class, 'max'], // 4
+        [Statistical\Minimum::class, 'min'], // 5
         [Operations::class, 'product'], // 6
         [Statistical\StandardDeviations::class, 'STDEV'], // 7
         [Statistical\StandardDeviations::class, 'STDEVP'], // 8
diff --git a/src/PhpSpreadsheet/Calculation/Statistical.php b/src/PhpSpreadsheet/Calculation/Statistical.php
index e34c0c1e..9819a4fd 100644
--- a/src/PhpSpreadsheet/Calculation/Statistical.php
+++ b/src/PhpSpreadsheet/Calculation/Statistical.php
@@ -942,20 +942,20 @@ class Statistical
      *        with negative numbers considered smaller than positive numbers.
      *
      * Excel Function:
-     *        MAX(value1[,value2[, ...]])
+     *        max(value1[,value2[, ...]])
      *
      * @Deprecated 1.17.0
      *
-     * @see Statistical\Maximum::MAX()
-     *      Use the MAX() method in the Statistical\Maximum class instead
-     *
      * @param mixed ...$args Data values
      *
      * @return float
+     *@see Statistical\Maximum::max()
+     *      Use the MAX() method in the Statistical\Maximum class instead
+     *
      */
     public static function MAX(...$args)
     {
-        return Maximum::MAX(...$args);
+        return Maximum::max(...$args);
     }
 
     /**
@@ -964,20 +964,20 @@ class Statistical
      * Returns the greatest value in a list of arguments, including numbers, text, and logical values
      *
      * Excel Function:
-     *        MAXA(value1[,value2[, ...]])
+     *        maxA(value1[,value2[, ...]])
      *
      * @Deprecated 1.17.0
      *
-     * @see Statistical\Maximum::MAXA()
-     *      Use the MAXA() method in the Statistical\Maximum class instead
-     *
      * @param mixed ...$args Data values
      *
      * @return float
+     *@see Statistical\Maximum::maxA()
+     *      Use the MAXA() method in the Statistical\Maximum class instead
+     *
      */
     public static function MAXA(...$args)
     {
-        return Maximum::MAXA(...$args);
+        return Maximum::maxA(...$args);
     }
 
     /**
@@ -1035,16 +1035,16 @@ class Statistical
      *
      * @Deprecated 1.17.0
      *
-     * @see Statistical\Minimum::MIN()
-     *      Use the MIN() method in the Statistical\Minimum class instead
-     *
      * @param mixed ...$args Data values
      *
      * @return float
+     *@see Statistical\Minimum::min()
+     *      Use the min() method in the Statistical\Minimum class instead
+     *
      */
     public static function MIN(...$args)
     {
-        return Minimum::MIN(...$args);
+        return Minimum::min(...$args);
     }
 
     /**
@@ -1057,16 +1057,16 @@ class Statistical
      *
      * @Deprecated 1.17.0
      *
-     * @see Statistical\Minimum::MINA()
-     *      Use the MINA() method in the Statistical\Minimum class instead
-     *
      * @param mixed ...$args Data values
      *
      * @return float
+     *@see Statistical\Minimum::minA()
+     *      Use the minA() method in the Statistical\Minimum class instead
+     *
      */
     public static function MINA(...$args)
     {
-        return Minimum::MINA(...$args);
+        return Minimum::minA(...$args);
     }
 
     /**
diff --git a/src/PhpSpreadsheet/Calculation/Statistical/Averages/Mean.php b/src/PhpSpreadsheet/Calculation/Statistical/Averages/Mean.php
index e39a3ff2..d4d0c7ee 100644
--- a/src/PhpSpreadsheet/Calculation/Statistical/Averages/Mean.php
+++ b/src/PhpSpreadsheet/Calculation/Statistical/Averages/Mean.php
@@ -28,10 +28,10 @@ class Mean
     {
         $aArgs = Functions::flattenArray($args);
 
-        $aMean = MathTrig\Product::evaluate($aArgs);
+        $aMean = MathTrig\Operations::product($aArgs);
         if (is_numeric($aMean) && ($aMean > 0)) {
             $aCount = Counts::COUNT($aArgs);
-            if (Minimum::MIN($aArgs) > 0) {
+            if (Minimum::min($aArgs) > 0) {
                 return $aMean ** (1 / $aCount);
             }
         }
@@ -56,7 +56,7 @@ class Mean
     {
         // Loop through arguments
         $aArgs = Functions::flattenArray($args);
-        if (Minimum::MIN($aArgs) < 0) {
+        if (Minimum::min($aArgs) < 0) {
             return Functions::NAN();
         }
 
diff --git a/src/PhpSpreadsheet/Calculation/Statistical/Maximum.php b/src/PhpSpreadsheet/Calculation/Statistical/Maximum.php
index 6d361e03..3f8436ff 100644
--- a/src/PhpSpreadsheet/Calculation/Statistical/Maximum.php
+++ b/src/PhpSpreadsheet/Calculation/Statistical/Maximum.php
@@ -19,7 +19,7 @@ class Maximum extends MaxMinBase
      *
      * @return float
      */
-    public static function MAX(...$args)
+    public static function max(...$args)
     {
         $returnValue = null;
 
@@ -53,7 +53,7 @@ class Maximum extends MaxMinBase
      *
      * @return float
      */
-    public static function MAXA(...$args)
+    public static function maxA(...$args)
     {
         $returnValue = null;
 
diff --git a/src/PhpSpreadsheet/Calculation/Statistical/Minimum.php b/src/PhpSpreadsheet/Calculation/Statistical/Minimum.php
index bd46882e..596aad78 100644
--- a/src/PhpSpreadsheet/Calculation/Statistical/Minimum.php
+++ b/src/PhpSpreadsheet/Calculation/Statistical/Minimum.php
@@ -19,7 +19,7 @@ class Minimum extends MaxMinBase
      *
      * @return float
      */
-    public static function MIN(...$args)
+    public static function min(...$args)
     {
         $returnValue = null;
 
@@ -53,7 +53,7 @@ class Minimum extends MaxMinBase
      *
      * @return float
      */
-    public static function MINA(...$args)
+    public static function minA(...$args)
     {
         $returnValue = null;