Find the best solutions to your questions at Westonci.ca, the premier Q&A platform with a community of knowledgeable experts. Our Q&A platform provides quick and trustworthy answers to your questions from experienced professionals in different areas of expertise. Connect with a community of professionals ready to help you find accurate solutions to your questions quickly and efficiently.

write a function that returns the sum of all the elements in a specified column in a matrix using the following header: def sumcolumn(m, columnindex): write a main function that prompts the user to enter a 3-by-4 matrix of numbers, calls the above function, and displays the sum of each column.