26) Create a vector named a and set its value to 100 200 300 400 500 600 700 800 900 1000. (note use the colon operator)

27) Print the fifth, sixth, and seventh elements of a via indexing matrix a with the colon operator. .

28) Give an example to illustrate the difference between the linspace function and the colon operator.

29) A = [2; 7; 4] write this Matlab command in a different way.

32) What is the command you should use to horizontally join matrices W and R, respectively?

33) What is the command you should use to vertically join matrices W and R, respectively?

34) What is the result of using the command R(:)?

35) What is the result of using M(:,1:2:3)?

36) Create a 5 by 5 magic matric and named it MAG.

37) Find the sum of the rows, columns, main diagonal, and secondary diagonal. What do you observe?