Help required fir recursive computation fft in matlab

Hi I am new to matlab... I was reading this book: Applied DSP by manolakis,and get stuck with the following code.. I am using matlab version 2014 and the statement W = exp(-2*pi*sqrt(-1)/N).ˆ(0:m-1)’; in the following code is giving error

The function from the book is as follows for reference:

function Xdft = fftrecur(x)

% Recursive computation of the DFT using divide & conquer

% N should be a power of 2

N = length(x);

if N ==1

Xdft = x;

else

m = N/2;

XE = fftrecur(x(1:2:N));

XO = fftrecur(x(2:2:N));

W = exp(-2*pi*sqrt(-1)/N).ˆ(0:m-1)’;

temp = W.*XO;

Xdft = [ XE+temp ; XO-temp ];

end

[MEGHNA LUDRA 17BEC0692]

did you figure it out

[Daniel M]

What is your error?

[MEGHNA LUDRA 17BEC0692]

i don't know MATLAB very well but i need this code for a project tomorrow

can you help me out?