3. Iterating Over Columns in NumPy Arrays: Python Loops and Beyond
   Using a for loop with . T (transpose):This method transposes the array using the . T attribute, which effectively swaps rows and columns
4. Iterating Through Lists with Python 'for' Loops: A Guide to Accessing Index Values
   Understanding for Loops and Lists:for loops are a fundamental control flow construct in Python that allow you to iterate (loop) through a sequence of elements in a collection
5. Understanding range and xrange in Python 2.X: Memory Efficiency Matters
   Understanding range and xrange:In Python 2.X, both range and xrange are used to generate sequences of numbers for use in loops