SUTSQ - time axis time-squared stretch of seismic traces

sutsq [optional parameters] <stdin >stdout

Required parameters:
none

Optional parameters:
tmin= .1*nt*dt minimum time sample of interest
(only needed for forward transform)
dt= .004 output sample rate
(only needed for inverse transform)
flag= 1 1=forward transform: time to time squared
-1=inverse transform: time squared to time

Note: The output of the forward transform always starts with
time squared equal to zero. 'tmin' is used to avoid aliasing
the early times.



Caveats:
Amplitudes are not well preserved.

Trace header fields accessed: ns, dt
Trace header fields modified: ns, dt