NFFT Data Structures

Here are the data structures with brief descriptions:

fastsum_plan_	Plan for fast summation algorithm
fpt_data_	Holds data for a single cascade summation
fpt_set_s_	Holds data for a set of cascade summations
fpt_step_	Holds data for a single multiplication step in the cascade summation
infsft_plan_s_old	Structure for an inverse transform plan
mri_inh_2d1d_plan	The structure for the transform plan
mri_inh_3d_plan	The structure for the transform plan
nfct_plan_	Structure for a transform plan
nfsft_plan_	Structure for a NFSFT transform plan
nfsft_plan_s_old	Structure for a transform plan
nfsft_wisdom	Wisdom structure
nfsft_wisdom_old	Toplevel wisdom structure
nfst_plan_	Structure for a transform plan
nnfft_plan	Structure for a transform plan
texture_plan_	Definition of the texture_plan
U_type_old	Datatype for a set of real 2x2 matrices used in FLT

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