file I/O [1] [2] include parameter [1] [2] type filter fio FITS floating point [1] [2] fmtio for format format code format internal table formatted I/O formatted I/O input Fortran [1] [2] [3] [4] [5] [6] [7] [8] [9] [10] [11] [12] [13] function [1] [2] [3] external intrinsic [1] [2] statement functions inline