linbox
1
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blackbox of a matrix sum without copying. More...
#include <sum.h>
Public Member Functions | |
Sum (const Blackbox1 &A, const Blackbox2 &B) | |
Sum (const Blackbox1 *A_ptr, const Blackbox2 *B_ptr) | |
Sum (const Sum< Blackbox1, Blackbox2 > &M) | |
~Sum (void) | |
Destructor. | |
template<class OutVector , class InVector > | |
OutVector & | apply (OutVector &y, const InVector &x) const |
template<class OutVector , class InVector > | |
OutVector & | applyTranspose (OutVector &y, const InVector &x) const |
size_t | rowdim (void) const |
size_t | coldim (void) const |
blackbox of a matrix sum without copying.
Adds only at apply time. Given two black boxes A and B of the same dimensions, form a black box representing A+B, i.e., Sum(A,B)x=(A+B)x=Ax+Bx
Vector | LinBox} dense or sparse vector of field elements |
Sum | ( | const Blackbox1 & | A, |
const Blackbox2 & | B | ||
) | [inline] |
Constructor from black box matrices. This constructor creates a matrix that is the sum, A + B, of black box matrices.
A,B,: | black box matrices. |
Sum | ( | const Blackbox1 * | A_ptr, |
const Blackbox2 * | B_ptr | ||
) | [inline] |
Constructor from black box pointers. This constructor creates a matrix that is the sum, A + B, of black box matrices.
A_ptr,B_ptr,: | pointers to black box matrices. |
Copy constructor. Creates new black box objects in dynamic memory.
M | constant reference to compose black box matrix |
OutVector& apply | ( | OutVector & | y, |
const InVector & | x | ||
) | const [inline] |
OutVector& applyTranspose | ( | OutVector & | y, |
const InVector & | x | ||
) | const [inline] |
size_t rowdim | ( | void | ) | const [inline] |
Retreive row dimensions of BlackBox matrix. This may be needed for applying preconditioners. Required by abstract base class.
size_t coldim | ( | void | ) | const [inline] |
Retreive column dimensions of BlackBox matrix. Required by abstract base class.