From 95df0042575bf391bd93a86d40c3e4b5f2cf947b Mon Sep 17 00:00:00 2001
From: Mohammed Aamir Khan <aamirmakofficial@gmail.com>
Date: Wed, 30 Oct 2019 09:32:56 -0700
Subject: [PATCH] Added Even Fibonacci Number Program

---
 even_fibonacci.py | 38 ++++++++++++++++++++++++++++++++++++++
 1 file changed, 38 insertions(+)
 create mode 100644 even_fibonacci.py

diff --git a/even_fibonacci.py b/even_fibonacci.py
new file mode 100644
index 0000000..c50dafe
--- /dev/null
+++ b/even_fibonacci.py
@@ -0,0 +1,38 @@
+# Find the sum of all the even-valued  
+# terms in the Fibonacci sequence which  
+# do not exceed given limit. 
+  
+# Returns sum of even Fibonacci numbers which 
+# are less than or equal to given limit. 
+def evenFibSum(limit) : 
+    if (limit < 2) : 
+        return 0
+  
+    # Initialize first two even prime numbers 
+    # and their sum 
+    ef1 = 0
+    ef2 = 2
+    sm= ef1 + ef2 
+      
+    # calculating sum of even Fibonacci value 
+    while (ef2 <= limit) : 
+  
+        # get next even value of Fibonacci  
+        # sequence 
+        ef3 = 4 * ef2 + ef1 
+  
+        # If we go beyond limit, we break loop 
+        if (ef3 > limit) : 
+            break
+  
+        # Move to next even number and update 
+        # sum 
+        ef1 = ef2 
+        ef2 = ef3 
+        sm = sm + ef2 
+      
+    return sm 
+  
+# Driver code 
+limit = 400
+print(evenFibSum(limit)) 
\ No newline at end of file