From ec51b75fee62aec6d664eda115f08d7849fa0eb9 Mon Sep 17 00:00:00 2001
From: Martins Sipenko <martins.sipenko@gmail.com>
Date: Thu, 7 Jan 2021 13:06:26 +0200
Subject: [PATCH] Mrand of zero to any multiple should return 0 (#1773)

---
 src/PhpSpreadsheet/Calculation/MathTrig.php | 2 +-
 tests/data/Calculation/MathTrig/MROUND.php  | 5 +++++
 2 files changed, 6 insertions(+), 1 deletion(-)

diff --git a/src/PhpSpreadsheet/Calculation/MathTrig.php b/src/PhpSpreadsheet/Calculation/MathTrig.php
index 823f6ef2..b8449b55 100644
--- a/src/PhpSpreadsheet/Calculation/MathTrig.php
+++ b/src/PhpSpreadsheet/Calculation/MathTrig.php
@@ -851,7 +851,7 @@ class MathTrig
         $multiple = Functions::flattenSingleValue($multiple);
 
         if ((is_numeric($number)) && (is_numeric($multiple))) {
-            if ($multiple == 0) {
+            if ($number == 0 || $multiple == 0) {
                 return 0;
             }
             if ((self::SIGN($number)) == (self::SIGN($multiple))) {
diff --git a/tests/data/Calculation/MathTrig/MROUND.php b/tests/data/Calculation/MathTrig/MROUND.php
index 38017b65..71655485 100644
--- a/tests/data/Calculation/MathTrig/MROUND.php
+++ b/tests/data/Calculation/MathTrig/MROUND.php
@@ -41,6 +41,11 @@ return [
         31415.92654,
         1,
     ],
+    [
+        0,
+        0,
+        5,
+    ],
     [
         '#NUM!',
         5,