EXERCISE 2.3 Using the function linspace generates a row vector vl with seven elements which uniformly cover the interval between 0 and 1. Now generate a vector v2 which also covers the interval between 0 and 1, but with a fixed discretization of 0.1. Use either the function length or size to determine how many elements the vector v2 has. What is the value of the third element of the vector v2