Finite volume
From charlesreid1
Error analysis - Versteeg p. 240 (Appendix A)
References
Versteeg, H.K.; Malalasekera W. (1995). An Introduction to Computational Fluid Dynamics: The Finite Volume Method. Wiley and Sons. ISBN 0-582-21884-5.
Ferziger, J.H.; Peric, M. (2002). Computational Methods for Fluid Dynamics (3rd ed.). Springer. ISBN 3-540-42074-6.