spdiags command not working

>> Dx=spdiags([e 2*e e], -1:1, Nx,Nx)/(dx)^{2}

Undefined operator '^' for input arguments of type 'cell'.

What is wrong with this line? cant figure it out.

Answer 1

[Steven Lord]

Remove the curly braces from around the 2 at the end of your statement.

[nandine]

But than i get this error

[nandine]

Actually your suggestion worked! Thank you!