Summary of FORTRAN routines

ndfaccess	To select a ndfy$\bf i$ data file other then the default.
ndfatw	Returns the mass for the current target in AMU.
ndfbuff	Provide memory allocated by the user to the ndf routines.
ndfclose	Closes the opened ndfy$\bf i$ file.
ndfcorrec	Returns the transport-correcting cross-section for the current target.
ndfed	Returns the deposited energy for the requested transportable outgoing
	particle for the current target.
ndfemax	Returns the total available energy for the current target.
ndfep	Returns the production energy for the current target.
ndffism	Returns the fission matrix for the current target.
ndffisx	Returns the fission < $\nu$$\sigma$ > g for the current target.
ndfflxw	Returns the collapsed flux weights for l = 0.
ndfflxw_l	Returns the collapsed flux weights for the requested Legendre order.
ndffsp	Returns the normalized fission spectrum for the current target.
ndfgid	Returns the group id of the uncollapsed energy boundaries of the incident
	particle.
ndfgp	Returns the uncollapsed energy boundaries of the incident particle.
ndfgroup	Provides the user supplied information needed for collapsing of the data.
ndfidog	Reads an energy group from a bdfls file.
ndfifsp	Returns a flag indicating whether or not fission data is present.
ndfinfo	Returns the path of the opened ndfy$\bf i$ file.
ndfinit	Opens an ndfy$\bf i$ file.
ndfiso	Selects a target from the opened ndfy$\bf i$ file.
ndfistab	Returns the list of targets in the opened ndfy$\bf i$ file.
ndfmxorder	Returns the maximum Legendre order in the opened ndfy$\bf i$ file.
ndfmxorder_tc	Returns the maximum Legendre order allowed by the current transport
	correction method.
ndfncorrec	Returns the length of data in 'double' words required by ndfcorrec.
ndfngroup	Returns the number of collapsed groups.
ndfngroups	Returns the number of uncollapsed groups.
ndfnistab	Returns the number of targets in the opened ndfy$\bf i$ file.
ndfnmaxgps	Returns the largest group size used in processing the opened ndfy$\bf i$ file.
ndfnppyos	Returns the number of transportable outgoing particles for which a
	production transfer matrix exist for the current target.
ndfnprod	Returns the number of outgoing particles produced by the requested reaction
	for the current target.
ndfnreact	Returns the number of reactions for the current target.
ndfnrxs	Returns the number of reactions of type C for the current target.
ndfnyos	Returns the number of transportable outgoing particles for the current target.
ndfpmat	Returns the collapsed production transfer matrix and the corrected,
	collapsed, deposited energy.
ndfppmatrix	Returns the uncollapsed production transfer matrix for the requested
	outgoing particle for the current target.
ndfppyos	Returns the list of transportable outgoing particles for which there are
	production transfer matrices for the current target.
ndfprod	Returns the ZA and multiplicity lists for particles produced by the requested
	reaction for the current target.
ndfreact	Returns a list of C-values for the reactions for the current target.
ndfrxs	Returns the requested reaction's cross-section data for the current target.
ndfrxslevel	Returns S-, Q-, X1-, X2-, X3-, Q eff-values and the cross-section for
	the requested level of the requested reaction for the current target.
ndfrxslist	Returns a list of S-, Q-, X1-, X2-, X3- and Q eff-values for the requested
	reaction for the current target.
ndfsig	Returns the total cross-section (transport corrected), interaction transfer
	matrix (yi $\rightarrow$ yo for yi = yo transport corrected),
	energy deposited by yo and the transport correcting cross-section for
	the requested Legendre order for the current target.
ndfsp	Returns the group speeds for the opened ndfy$\bf i$ file.
ndftotal	Returns the uncorrected total cross-section for the current target.
ndftransfer	Returns the uncollapsed, uncorrected interaction transfer matrix for the
	requested Legendre order for the current target.
ndftrcorr	Sets the desired transport correction method.
ndfwsp	Returns the collapsed normalized l = 0 flux.
ndfyo	Returns the jth particle's id from the particle directory of the global
	data section.
ndfyos	Returns a list of transportable outgoing particles with energy deposit data for
	the current target.
ndfyo_gid	Returns the group id for the requested outgoing particle.
ndfyo_info	Returns the number of energy groups, nh, and the conservation flag, iecflg,
	for the requested transportable outgoing particle.