Tài liệu Partial Differential Equation Toolbox pdf

... turn the first page: What does this toolbox do? Can I use it? What problems can I solve?, etc. What Does this Toolbox Do? The Partial Differential Equation (PDE) Toolbox provides a powerful and ... and solution of partial differential equations in two space dimensions and time. The equations are discretized by the Finite Element Method (FEM). The objectives of the PDE Tool...

Ngày tải lên: 26/01/2014, 02:20

... parabolic equation, the diffusion equation in one space dimension, ∂u ∂t = ∂ ∂x  D ∂u ∂x  (19.2.1) where D is the diffusion coefficient. Actually, this equation is a flux-conservative equation ... requirement |ξ|≤1leads to the stability criterion 2D∆t (∆x) 2 ≤ 1(19.2.6) 848 Chapter 19. Partial Differential Equations Sample page from NUMERICAL RECIPES IN C: THE ART OF SCIENTIFIC COM...

Ngày tải lên: 15/12/2013, 04:15

... accurate in time and space, and unconditionally stable, but the equations are easier to solve than 856 Chapter 19. Partial Differential Equations Sample page from NUMERICAL RECIPES IN C: THE ART OF ... are looking for is known to be smooth, and the high-order method you 854 Chapter 19. Partial Differential Equations Sample page from NUMERICAL RECIPES IN C: THE ART OF SCIENTIFIC COMPUT...

Ngày tải lên: 15/12/2013, 04:15

... Helmholtz or Poisson equations in polar, cylindrical,or spherical coordinate systems. More general separable equations are treated in [1] . 862 Chapter 19. Partial Differential Equations Sample page ... equations that are linear, or iteratively, for boundary value equations that are nonlinear. 858 Chapter 19. Partial Differential Equations Sample page from NUMERICAL RECIPES IN C: THE...

Ngày tải lên: 15/12/2013, 04:15

... is somewhat more physical. Suppose we wish to solve the elliptic equation Lu = ρ (19.5.1) 864 Chapter 19. Partial Differential Equations Sample page from NUMERICAL RECIPES IN C: THE ART OF SCIENTIFIC ... common, it is clear that the Jacobi method is only of theoretical interest. 866 Chapter 19. Partial Differential Equations Sample page from NUMERICAL RECIPES IN C: THE ART OF SCIENT...

Ngày tải lên: 15/12/2013, 04:15

... this framework to solve your specific problem. We can only give a brief 880 Chapter 19. Partial Differential Equations Sample page from NUMERICAL RECIPES IN C: THE ART OF SCIENTIFIC COMPUTING (ISBN ... is easy to modify. Several simple changes will speed up the execution time: 882 Chapter 19. Partial Differential Equations Sample page from NUMERICAL RECIPES IN C: THE ART OF SCIENTIFIC...

Ngày tải lên: 24/12/2013, 12:16

... thoát hơi hồ quang. Trong cầu chì loại đầy kín hồ quang được dập tắt qua vật liệu làm đầy kín , chẳng hạng như vật liệu dạng hột, lỏng hay rắn. Nhà chế tạo thường dùng 1 trong các nguyên tắt ... cho ở (H.4.1). Dây chì được chứa trong ống dài được gọi là bộ giữõ dây chì và được làm bằng vật liệu cách điện, ống giữ được thiết kế có thể tháo rời dễ dàng. FCO có thể làm việc như cầu c...

Ngày tải lên: 20/08/2012, 10:09

Ngày tải lên: 23/08/2012, 10:53

Ngày tải lên: 23/08/2012, 11:02

Ngày tải lên: 23/08/2012, 11:02