Table:
BEM	FEM	iFDM	aFDM
Position of computational points	Surface	Volume	Volume	Volume
Free choice of computational points	Yes	Yes	No	No
System matrix	Full	Sparse	Sparse	Sparse
Solvers	Direct/iterative	Iterative	Iterative	Iterative
Number of compartments	Small	Large	Large	Large
Requires tessellation	Yes	Yes	No	No
Handles anisotropy	No	Yes	No	Yes

Express the illustration as Markdown code.

|  | BEM | FEM | iFDM | aFDM | 
 | --- | --- | --- | --- | --- | 
 | Position of computational points | Surface | Volume | Volume | Volume | 
 | Free choice of computational points | Yes | Yes | No | No | 
 | System matrix | Full | Sparse | Sparse | Sparse | 
 | Solvers | Direct/iterative | Iterative | Iterative | Iterative | 
 | Number of compartments | Small | Large | Large | Large | 
 | Requires tessellation | Yes | Yes | No | No | 
 | Handles anisotropy | No | Yes | No | Yes |