f=izak(c);
izak(c) computes the inverse Zak transform of c. The parameter of the Zak transform is deduced from the size of c.
A. J. E. M. Janssen. Duality and biorthogonality for discrete-time Weyl-Heisenberg frames. Unclassified report, Philips Electronics, 002/94.
H. Bölcskei and F. Hlawatsch. Discrete Zak transforms, polyphase transforms, and applications. IEEE Trans. Signal Process., 45(4):851--866, april 1997.