.. toctree:: 
  :maxdepth: 2
  :caption: Fortran API:

  ana

  aux

  batch
 
  conv

  const

  dump
 
  ei

  exp

  filter

  ip

  lapack

  lap

  legacy

  mpar

  part

  pod

  qoi

  read

  riesz

  rk

  rom

  tensor

  time