## Appendix E. THOMAS ALGORITHM FOR MULTI-LAYERS OF VG MODELThomas algorithm solves a tridiagonal matrix equation: into a form: where b's, _{i}c's, and _{i}f's are give constants.b_{i}_{i}'s and y'$s can be calculated by comparing corresponding elements of the above two equations, and _{i}x's can be expressed:_{i}This equation can be solved by assuming: and obtaining a _{i}'s, and y_{i}'s incrementally: Then
Last modified: Oct 15, 1999 VG Model / Samuel Lee / VADOSE.NET |