| 57 |
|
/** |
| 58 |
|
* @class SquareMatrix SquareMatrix.hpp "math/SquareMatrix.hpp" |
| 59 |
|
* @brief A square matrix class |
| 60 |
< |
* @template Real the element type |
| 61 |
< |
* @template Dim the dimension of the square matrix |
| 60 |
> |
* \tparam Real the element type |
| 61 |
> |
* \tparam Dim the dimension of the square matrix |
| 62 |
|
*/ |
| 63 |
|
template<typename Real, int Dim> |
| 64 |
|
class SquareMatrix : public RectMatrix<Real, Dim, Dim> { |
| 125 |
|
Real det; |
| 126 |
|
return det; |
| 127 |
|
} |
| 128 |
< |
|
| 128 |
> |
|
| 129 |
|
/** Returns the trace of this matrix. */ |
| 130 |
|
Real trace() const { |
| 131 |
|
Real tmp = 0; |
| 184 |
|
return true; |
| 185 |
|
} |
| 186 |
|
|
| 187 |
+ |
/** |
| 188 |
+ |
* Returns a column vector that contains the elements from the |
| 189 |
+ |
* diagonal of m in the order R(0) = m(0,0), R(1) = m(1,1), and so |
| 190 |
+ |
* on. |
| 191 |
+ |
*/ |
| 192 |
+ |
Vector<Real, Dim> diagonals() const { |
| 193 |
+ |
Vector<Real, Dim> result; |
| 194 |
+ |
for (unsigned int i = 0; i < Dim; i++) { |
| 195 |
+ |
result(i) = this->data_[i][i]; |
| 196 |
+ |
} |
| 197 |
+ |
return result; |
| 198 |
+ |
} |
| 199 |
+ |
|
| 200 |
|
/** Tests if this matrix is the unit matrix. */ |
| 201 |
|
bool isUnitMatrix() const { |
| 202 |
|
if (!isDiagonal()) |
| 232 |
|
* @return true if success, otherwise return false |
| 233 |
|
* @param a symmetric matrix whose eigenvectors are to be computed. On return, the matrix is |
| 234 |
|
* overwritten |
| 235 |
< |
* @param w will contain the eigenvalues of the matrix On return of this function |
| 235 |
> |
* @param d will contain the eigenvalues of the matrix On return of this function |
| 236 |
|
* @param v the columns of this matrix will contain the eigenvectors. The eigenvectors are |
| 237 |
|
* normalized and mutually orthogonal. |
| 238 |
|
*/ |
