Halfint - half order integeral filter
Halfint conj=0 inv=0 < in.H > out.H
[0]: half-order integrator . 1: half-order differentiator .
[0]: causal . 1: anticausal .
[1-2/n1]: constant for leaky integration .
cube dimensions
half-order integral filter on 1-axis with conjugate and inverse. computation in the Fourier domain.
Halfint < in.H conj=0 inv=1 > out.H computes the causal half-order derivative of the input data
GEE page xxx and PVI page xxxx
seis/filter