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sfttieikonal (4.0)		index
user/uwaheed/Mttieikonal.c
\n Fast sweeping TTI eikonal solver (2D) \n

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\n Synopsis
       sfttieikonal < vzf.rsf > time.rsf niter=4 nfpi=3 zshot=0. yshot=o2 + 0.5*(n2-1)*d2 epsilon= delta= theta= shotfile=
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\n Parameters
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string delta= 		\t
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string epsilon= 		\t
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int nfpi=3 		\tnumber of fixed-point iterations
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int niter=4 		\tnumber of sweeping iterations
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string shotfile= 		\tFile with shot locations (n2=number of shots, n1=3)
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string theta= 		\t
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float yshot=o2 + 0.5*(n2-1)*d2 		\t
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float zshot=0. 		\tShot location (used if no shotfile)
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