Approximate all low-rank blocks by zero, e.g. for nearfield only. More...
#include <TLowRankApx.hh>
Inheritance diagram for TZeroLRApx:
Public Member Functions | |
| virtual TMatrix * | build (const TBlockCluster *c, const TTruncAcc &acc) const |
| return low rank matrix of rank 0 | |
Detailed Description
If only the near field blocks of a matrix should be computed, TZeroLRApx will do that by approximating all far field blocks by zero, e.g. a 0-rank low rank matrix.
