Need some help with these pracs

1. Write a function called int_col that has one input argument, a positive integer n that is greater than 1, and one output argument v that is a column vector of length n containing all the positive integers smaller than or equal to n, arranged in such a way that no element of the vector equals its own index. In other words, v(k) is not equal to k for any valid index k.

2.Write a function called hulk that takes a row vector v as an input and returns a matrix H whose first column consist of the elements of v, whose second column consists of the squares of the elements of v, and whose third column consists of the cubes of the elements v. For example, if you call the function likes this, A = hulk(1:3) , then A will be [ 1 1 1; 2 4 8; 3 9 27 ].

I can understand what the questions ask me to do, but I just dont have a clue how to start these two Qs. if any one can help me, even just the ideas how to approach these, I will be grateful. thanks

[Adwaith G]

function H = hulk(v)
H = [(v);(v.^2);(v.^3)]';

I am not sure if this is right or not, since i am new to matlab.

So basically, if V = 1 2 3

H should be 1 1 1

2 4 8

3 9 27

So first i make the H matrix as 1 2 3 ( V)

1 4 9 (square of V)

1 8 27 (cube of V)

and after this , i took the transpose of this to get the result.

[Jan]

@Adwaith G: Or maybe a little bit simpler:

H = v(:) .^ (1:3);

[Jan]

@Jeffrey Clark: This is neither valid Matlab syntax nor do I see the connection to the question.