Task #

In this exercise, we will use different techniques to extract useful information from a 2-dimensional array.

Problem statement #

For the array arr given in the code below, write code to print:

• the first row of arr
• the first column of arr
• the third row of arr
• the last two columns of arr
• the 2 by 2 block of values in the upper right-hand corner of arr
• the 2 by 2 block of values at the center of arr