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factorial.py

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+"""
+Name:Joe George
+Title: Factorial of a number (With & Without Recursion)
+Date: 3 December 2024
+"""
+
+# 1. WITHOUT RECURSION
+def factorial(n):
+    result = 1
+    for i in range(1,n+1):
+        result *= i
+    return result
+
+print(factorial(4))
+
+
+# 2. WITH RECURSION
+def recursion_factorial(n):
+    if n == 1:
+        return 1
+    else:
+        return n*factorial(n-1)
+
+print(recursion_factorial(4))

greatest common divisor.py

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+'''
+Name:Joe George
+Title: Greatest Common Divisor.
+Date: 3 December 2024
+'''
+
+# Greatest Common Divisor
+def gcd(a,b):
+    if a % b==0:
+        return b
+    else:
+        return gcd(b,a%b)
+
+print(gcd(12,16))
+

recursive addition.py

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+"""
+Name:Joe George
+Title: Addition using recursion
+Date: 3 December 2024
+"""
+
+def add_nums(a, b):
+    if b == 0:
+        return a
+    else:
+        return add_nums(a+1, b-1)
+
+print(add_nums(10, 10))
+

recursive multiply.py

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+"""
+Name:Joe George
+Title: Multiplication using recursion
+Date: 3 December 2024
+"""
+
+def multiply(a, b):
+    if b == 1:
+        return a
+    else:
+        return a + multiply(a, b-1)
+
+print(multiply(10, 10))