Hi All,

New-again matlab user after a decade away; having trouble with raising a negative number to the power 0.

I recognise that:

- (-2)^0 = 1 and
- -2^0 = -1.

In my code, I am trying to populate a 5×5, row by row filling the columns with elements of one 1×5 row vector to the power of another 1×5 vector.

I have written a very basic, and probably inefficient way of doing this with two for loops, but when it comes to raising a negative number to the power 0 and storing it, I get 1 as opposed to what I think is correct; -1.

I presume Im missing something very basic but would really appreciate any help; Thank you!

`k = [0:4]x = [-2.0 3.0 9.0 2.0 25.0]A = ones(5,5);for row = 1:length(k) for col = 1:length(k) A(row,col) = x(col)^k(row); endendThis is what I get: But I think the top left should be -1 since -2^0 = -1 1 1 1 1 1 -2 3 9 2 25 4 9 81 4 625 -8 27 729 8 15625 16 81 6561 16 390625`

## Best Answer