function [INPUT] = write_fort90(OUTPUTS,GRID,MODEL,INITIAL,TIME_INTEGRATION,BASIC)
% Write the input script "fort.90" with desired parameters
INPUT = '../wk/fort.90';
fid = fopen(INPUT,'wt');
fprintf(fid,'&BASIC\n');
fprintf(fid,['  nrun=', num2str(BASIC.nrun),'\n']);
fprintf(fid,['  dt=', num2str(BASIC.dt),'\n']);
fprintf(fid,['  tmax=', num2str(BASIC.tmax),'    ! time normalized to 1/omega_pe\n']);
fprintf(fid,'/\n');
fprintf(fid,'&GRID\n');
fprintf(fid,['  pmaxe =', num2str(GRID.pmaxe),'    ! Electron Hermite moments \n']);
fprintf(fid,['  jmaxe = ', num2str(GRID.jmaxe),'     ! Electron Laguerre moments \n']);
fprintf(fid,['  pmaxi = ', num2str(GRID.pmaxi),'    ! Ion Hermite moments \n']);
fprintf(fid,['  jmaxi = ', num2str(GRID.jmaxi),'     ! Ion Laguerre moments\n']);
fprintf(fid,['  nkr   = ', num2str(GRID.nkr),'\n']);
fprintf(fid,['  krmin = ', num2str(GRID.krmin),'\n']);
fprintf(fid,['  krmax = ', num2str(GRID.krmax),'\n']);
fprintf(fid,['  nkz   = ', num2str(GRID.nkz),'\n']);
fprintf(fid,['  kzmin = ', num2str(GRID.kzmin),'\n']);
fprintf(fid,['  kzmax = ', num2str(GRID.kzmax),'\n']);
fprintf(fid,'/\n');
fprintf(fid,'&OUTPUT_PAR\n');
fprintf(fid,['  nsave_0d = ', num2str(OUTPUTS.nsave_0d),'\n']);
fprintf(fid,['  nsave_1d = ', num2str(OUTPUTS.nsave_1d),'\n']);
fprintf(fid,['  nsave_2d = ', num2str(OUTPUTS.nsave_2d),'\n']);
fprintf(fid,['  nsave_5d = ', num2str(OUTPUTS.nsave_5d),'\n']);
fprintf(fid,['  write_Ni00    = ', OUTPUTS.write_Ni00,'\n']);
fprintf(fid,['  write_moments = ', OUTPUTS.write_moments,'\n']);
fprintf(fid,['  write_phi     = ', OUTPUTS.write_phi,'\n']);
fprintf(fid,['  write_doubleprecision = ', OUTPUTS.write_doubleprecision,'\n']);
fprintf(fid,['  resfile0      = ', OUTPUTS.resfile0,'\n']);
fprintf(fid,'/\n');
fprintf(fid,'&MODEL_PAR\n');
fprintf(fid,'  ! Collisionality\n');
fprintf(fid,['  CO      = ', num2str(MODEL.CO),'       ! Collision operator (-1:Full Coulomb, 0: Dougherty)\n']);
fprintf(fid,['  nu      = ', num2str(MODEL.nu),'       ! Normalized collision frequency normalized to plasma frequency\n']);
fprintf(fid,['  tau_e   = ', num2str(MODEL.tau_e),'         ! T_e/T_e\n']);
fprintf(fid,['  tau_i   = ', num2str(MODEL.tau_i),'         ! T_i/T_e       temperature ratio\n']);
fprintf(fid,['  sigma_e = ', num2str(MODEL.sigma_e),'   ! sqrt(m_e/m_i) mass ratio\n']);
fprintf(fid,['  sigma_i = ', num2str(MODEL.sigma_i),'         ! sqrt(m_i/m_i)\n']);
fprintf(fid,['  q_e     = ', num2str(MODEL.q_e),'         ! Electrons charge\n']);
fprintf(fid,['  q_i     = ', num2str(MODEL.q_i),'         ! Ions charge\n']);
fprintf(fid,['  eta_n   = ', num2str(MODEL.eta_n),'         ! L_perp / L_n Density gradient\n']);
fprintf(fid,['  eta_T   = ', num2str(MODEL.eta_T),'         ! L_perp / L_T Temperature gradient\n']);
fprintf(fid,['  eta_B   = ', num2str(MODEL.eta_B),'         ! L_perp / L_B Magnetic gradient and curvature\n']);
fprintf(fid,['  lambdaD = ', num2str(MODEL.lambdaD),'         ! Debye length\n']);
fprintf(fid,'/\n');
fprintf(fid,'&INITIAL_CON\n');
fprintf(fid,'  ! Background value\n');
fprintf(fid,['  initback_moments=', num2str(INITIAL.initback_moments),' ! x 1e-3\n']);
fprintf(fid,'  ! Noise amplitude\n');
fprintf(fid,['  initnoise_moments=', num2str(INITIAL.initnoise_moments),'\n']);
fprintf(fid,['  iseed=', num2str(INITIAL.iseed),'\n']);
fprintf(fid,'/\n');
fprintf(fid,'&TIME_INTEGRATION_PAR\n');
fprintf(fid,['  numerical_scheme=', TIME_INTEGRATION.numerical_scheme,'\n']);
fprintf(fid,'/');
fclose(fid);
end