Modify your Sum all even script so that given an integer n you generate a vector vec that contains all of the ODD numbers between 1 and 2^n. Then add them all up in the variable out.

Instructions: To solve this problem, modify the template bellow with your code. Leave the name of the function and variables unchanged. Otherwise your code will not pass the test.

function out = sumallodd(n) % Put your code here end

[James Tursa]

What have you done so far? Post your code and tell us where you are having problems, and we can help you.

[John Chilleri]

Hints:

1. Somehow go through each number from 1 to 2^n.

2. Figure out how to test if they're odd (one option is using the mod function).

3. Somehow store them in a vector vec if they're odd.

4. Somehow make out the sum of all elements in vec.

Note: consider what value the variable out should initially equal before adding the odd numbers.

[Guillaume]

2. can be avoid by changing 1. to go through each number from 1 to 2^n in steps of 2.

Answer 1

[Roger Stafford]

   out = 4^(n-1);