MATLAB Question?

Use the linspace function, colon notation, and sum function to create a matrix B. The elements in the first row should start at 1 and go up to 5 with a step size of 0.5. The numbers in the second row start at 5 and go up to 6 and be evenly spaced. The numbers in the third row are the sum of the first and second rows (for example: column 1 of the 3rd row holds the number 6 and the last column of 3rd row holds the number 11)