template<class Type> class DiagMatrix : public Matrix <Type> template<class Type> class DiagMatrix : public Matrix <Type> a diagonal matrix class
 | DiagMatrix () a default constructor |
| | DiagMatrix (int m) construct a m x m diagonal matrix |
| | DiagMatrix (const Vector <Type>& x) construct a DiagMatrix with diagonal elements the same as the Vector |
| | DiagMatrix (const DiagMatrix <Type>& A) construct an identical DiagMatrix |
| const char* | matrixType () const returns the Matrix Type |
| Type | max () const returns the maximum element on the diagonal |
| Type | min () const returns the minimum element on the diagonal |
| int | indexMax () const returns the index of the maximum diagonal element |
| int | indexMin () const returns the index of the minimum diagonal element |
| Vector <Type> | diagVector () const returns the diagonal as a Vector |
| Vector <Type> | rowVector (int i) const returns the $i$th-row vector |
| Vector <Type> | colVector (int j) const returns the $j$th-column vector |
| int | size () const fetch size of the DiagMatrix |
| Type& | operator[] (int i) returns the $i$th diagonal element, re-writable |
| Type | operator[] (int i) const returns the $i$th diagonal element, non re-writable |
| Type | operator() (char*, int j) sum across the $j$th-row |
| Type | operator() (int i, char*) sum across the $i$th-column |
| Type | rowMax (int ir) const |
| Type | rowMin (int ir) const |
| Type | colMax (int ic) const |
| Type | colMin (int ic) const |
| DiagMatrix <Type>& | operator= (const DiagMatrix <Type>&) Overloading operators |
| DiagMatrix <Type>& | operator= (const Vector <Type>&) |
| DiagMatrix <Type>& | operator= (const Type) |
| DiagMatrix <Type>& | operator= (const Type*) |
| DiagMatrix <Type>& | operator+= (const DiagMatrix <Type>&) |
| DiagMatrix <Type>& | operator-= (const DiagMatrix <Type>&) |
| DiagMatrix <Type>& | operator+= (const Type) |
| DiagMatrix <Type>& | operator-= (const Type) |
| DiagMatrix <Type>& | operator*= (const Type) |
| DiagMatrix <Type>& | operator/= (const Type) |
| friend ostream& | operator<< (ostream&, const DiagMatrix <Type>&) friend functions for I/O streams |
| friend Vector <Type> | operator* (const DiagMatrix <Type>& d, const Vector <Type>& x) friend functions, DiagMatrix * Vector |
| friend Vector <Type> | operator* (const Vector <Type>& x, const DiagMatrix <Type>& d) friend function, Vector * DiagMatrix |
| Vector <Type> | atdotx (const Vector <Type>& v) friend function, G(transpose)axpy |
| Vector <Type> | adotx (const Vector <Type>& v) friend function, Gaxpy |
int numOfRows() const
int numOfCols() const
a diagonal matrix class
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(c)opyright by Malte Zöckler, Roland Wunderling