Blackbox of a difference: C := A - B, i.e. Cx = Ax - Bx.
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#include <dif.h>
List of all members.
Public Member Functions |
| Dif (const Blackbox1 &A, const Blackbox2 &B) |
| Dif (const Blackbox1 *A_ptr, const Blackbox2 *B_ptr) |
| Dif (const Dif< Blackbox1, Blackbox2 > &M) |
| ~Dif (void) |
| Destructor.
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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 |
Detailed Description
template<class _Blackbox1, class _Blackbox2>
class LinBox::Dif< _Blackbox1, _Blackbox2 >
Blackbox of a difference: C := A - B, i.e. Cx = Ax - Bx.
{ Template parameters:} Field is the class of the entry domain, Vector is a LinBox dense or sparse vector of field elements class.
Constructor & Destructor Documentation
Dif |
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const Blackbox1 & |
A, |
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const Blackbox2 & |
B |
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) |
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inline |
Build this as A - B from blackboxes A, B. A and B must have the same shape and be over the same field. Their data is not copied. A subsequent change to one of them also changes this difference.
Dif |
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const Blackbox1 * |
A_ptr, |
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const Blackbox2 * |
B_ptr |
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) |
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inline |
Build this as A - B from blackbox pointers A_ptr, B_ptr. The two matrices must have the same shape and be over the same field. Their data { is} copied. I don't know why.
Dif |
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const Dif< Blackbox1, Blackbox2 > & |
M | ) |
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inline |
Makes a deep copy. Creates new black box objects in dynamic memory.
- Parameters:
-
M | constant reference to compose black box matrix |
Member Function Documentation
OutVector& apply |
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OutVector & |
y, |
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const InVector & |
x |
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) |
| const |
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inline |
Application of BlackBox matrix. y= (A+B)*x. Requires one vector conforming to the LinBox} vector archetype. Required by abstract base class.
- Returns:
- reference to vector y containing output.
- Parameters:
-
x | constant reference to vector to contain input |
OutVector& applyTranspose |
( |
OutVector & |
y, |
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const InVector & |
x |
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) |
| const |
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inline |
Application of BlackBox matrix transpose. y= transpose(A+B)*x. Requires one vector conforming to the LinBox} vector archetype. Required by abstract base class.
- Returns:
- reference to vector y containing output.
- Parameters:
-
x | constant reference to vector to contain input |
size_t rowdim |
( |
void |
| ) |
const |
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inline |
Retreive row dimensions of BlackBox matrix. This may be needed for applying preconditioners. Required by abstract base class.
- Returns:
- integer number of rows of black box matrix.
size_t coldim |
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void |
| ) |
const |
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inline |
Retreive column dimensions of BlackBox matrix. Required by abstract base class.
- Returns:
- integer number of columns of black box matrix.
The documentation for this class was generated from the following file:
- /build/linbox-TzW5I9/linbox-1.1.6~rc0/linbox/blackbox/dif.h