  COSMICS is a package of fortran programs useful for computing transfer
functions and microwave background anisotropy for cosmological models, and for
generating gaussian random initial conditions for nonlinear structure formation
simulations of such models. Four programs are provided: {\bf linger\_con} and
{\bf linger\_syn} integrate the linearized equations of general relativity,
matter, and radiation in conformal Newtonian and synchronous gauge,
respectively; {\bf deltat} integrates the photon transfer functions computed by
the linger codes to produce photon anisotropy power spectra; and {\bf grafic}
tabulates normalized matter power spectra and produces constrained or
unconstrained samples of the matter density field.
  Version 1.0 of COSMICS is available at http://arcturus.mit.edu/cosmics/ . The
current release gives fortran-77 programs that run on workstations and
vectorized supercomputers. Unix makefiles are included that make it simple to
build and test the package. A future release will include portable parallel
versions of the linger codes using standard message-passing libraries.
