Welcome to another engaging exercise designed to refine your Scala programming skills! In this unit, we're diving into the fascinating world of matrices. Our main focus will be on transposing a given matrix. Let's embark on this matrix manipulation challenge using Scala's powerful capabilities!

Let's break down the task at hand. Your goal is to create a Scala function named transformMatrix. This function should accept a 2D array (which represents a matrix) containing integers as input. Your task is to return another 2D array, which is the transposed version of the provided matrix.

Transposing a matrix involves switching its rows and columns. In simpler terms, every row of the original matrix should become a column in the transposed matrix, and vice versa.

For instance, if the original matrix (input 2D array) is:

Then the transposed matrix (output 2D array) should be:

It's crucial to preserve the integrity of the data type present in the original matrix. In this case, the values in the input matrix are integers, so they should remain integers in the output matrix as well.

The first step in constructing our solution is determining the dimensions of the matrix. We need to know the number of rows and columns it contains. In Scala, we can use the .length method to obtain this information. The number of rows corresponds to the length of the outer array, and the number of columns equals the length of any inner array (assuming it's not empty).