From bf628bf35306e32903bba92aa2d79faacec337ba Mon Sep 17 00:00:00 2001
From: alyanrndh <56344623+alyanrndh@users.noreply.github.com>
Date: Thu, 10 Oct 2019 22:59:50 +0700
Subject: [PATCH] update the factorial

---
 calc_main.py | 12 +++++++++++-
 1 file changed, 11 insertions(+), 1 deletion(-)

diff --git a/calc_main.py b/calc_main.py
index 0de8c76..b1b1682 100644
--- a/calc_main.py
+++ b/calc_main.py
@@ -44,6 +44,16 @@ def floor_division():
         
         
     def factorial():
+        num = int(input("enter a number: "))
+        if num < 0:
+        print("Sorry, factorial does not exist for negative numbers")
+        elif num == 0:
+        print("The factorial of 0 is 1")
+        else:
+        for i in range(1,num + 1):
+        factorial = factorial*i
+        print("The factorial of",num,"is:",factorial)
+        return
 
     if choice==1:
         additon()
@@ -61,4 +71,4 @@ def factorial():
         factorial()
     else:
         print("wrong input")
-        exit(0)
\ No newline at end of file
+        exit(0)