Added arithmetic_operators.py to Python-Basic-to-Advance repo

Author: amratadev

arithmetic_operators.py

@@ -0,0 +1,33 @@
+a = 10
+b = 2
+
+print("Div=", a/b)      # True Division → always float → 5.0
+print("Div=", a//b)     # Floor Division → 5
+
+print("Mul=", 5*2)      # Multiplication → 10
+print("Square of 2 is=", 2**2)   # 2^2 → 4
+print("Cube of 2 is=", 2**3)     # 2^3 → 8
+print("3 raised power 4=", 3**4) # 3^4 → 81
+
+"""
+PEMDAS (Operator Precedence in Python)
+P = Parentheses ()
+E = Exponent **
+M = Multiplication *
+D = Division /
+F = Floor Division //
+Mod = Modulus %
+A = Addition +
+S = Subtraction -
+L-> R 
+"""
+
+expression = 5 + 2*3 - 1 + 10/5#5+6-1+2.0->11-1+2.0->10+2.0->12.0
+print(expression)  
+
+# Calculate BMI
+weight = float(input("Enter weight (kg): "))
+height = float(input("Enter height (m): "))
+
+print("BMI =", (weight / (height**2)))
+print("BMI =", round(weight / (height**2), 1))