Dirichlet transform

Dirichlet transform

[‚dē·rē′klā ‚tranz‚fȯrm]
(mathematics)
For a function ƒ(x), this is the integral of ƒ(x)·sin (kx)/ x ; its convergence determines the convergence of the Fourier series of ƒ(x).
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.