Fibonacci

Fibonac.py

+# Program to display the Fibonacci sequence up to n-th term where n is provided by the user
+
+# change this value for a different result
+nterms = 10
+
+# uncomment to take input from the user
+#nterms = int(input("How many terms? "))
+
+# first two terms
+n1 = 0
+n2 = 1
+count = 0
+
+# check if the number of terms is valid
+if nterms <= 0:
+   print("Please enter a positive integer")
+elif nterms == 1:
+   print("Fibonacci sequence upto",nterms,":")
+   print(n1)
+else:
+   print("Fibonacci sequence upto",nterms,":")
+   while count < nterms:
+       print(n1,end=' , ')
+       nth = n1 + n2
+       # update values
+       n1 = n2
+       n2 = nth
+       count += 1
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