!  -*-f90-*-  (for emacs)    vim:set filetype=fortran:  (for vim)
 private

 public :: initialize_power_spectrum
 public :: power, powerhel, powerscl, power_1d, power_2d, power_xy, pdf
 public :: pdf1d_ang
 public :: powerLor, powerEMF, powerTra, powerGWs
 public :: power_phi,powerhel_phi, power_vec
 public :: read_power_spectrum_run_pars,  write_power_spectrum_run_pars
 public :: n_spectra
 public :: polar_spectrum, power1d_plane, power_cor, quadratic_invariants
 public :: power_fft3d_vec, power_cor_scl, power_mag_hel_transfer