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The xxz derivative

The 45$^\circ$ diffraction equation differs from the 15$^\circ$ equation by the inclusion of a $ \partial^3 / \partial x^2 \partial z $ -derivative. Luckily this derivative fits on the six-point differencing star

-1 2
   
   
1 -2
   
   
So other than modifying the six coefficients on the star, it adds nothing to the computational cost.


previous up next print clean
Next: Difficulty in higher dimensions Up: FINITE DIFFERENCING Previous: Solving tridiagonal simultaneous equations
Stanford Exploration Project
10/31/1997