Structure matrix of REAL type. More...

#include <fasp.h>

Data Fields
INT	nx
	number of grids in x direction More...

INT	ny
	number of grids in y direction More...

INT	nz
	number of grids in z direction More...

INT	nxy
	number of grids on x-y plane More...

INT	nc
	size of each block (number of components) More...

INT	ngrid
	number of grids More...

REAL *	diag
	diagonal entries (length is ngrid*(nc^2)) More...

INT	nband
	number of off-diag bands More...

INT *	offsets
	offsets of the off-diagonals (length is nband) More...

REAL **	offdiag
	off-diagonal entries (dimension is nband * [(ngrid-\|offsets\|) * nc^2]) More...

Detailed Description

Structure matrix of REAL type.

Note: Every nc^2 entries of the array diag and off-diag[i] store one block: For 2D matrix, the recommended offsets is [-1,1,-nx,nx]; For 3D matrix, the recommended offsets is [-1,1,-nx,nx,-nxy,nxy].

Definition at line 316 of file fasp.h.