void
kron(const Matrix_T& x, const Matrix_T& y, Matrix_T& z)
{
const int rx = x.size1();
const int cx = x.size2();
const int ry = y.size1();
const int cy = y.size2();
z.resize (rx*ry, cx*cy);
z.clear ();
for ( typename Matrix_T::const_iterator1 i = x.begin1();
i != x.end1(); ++i)
for ( typename Matrix_T::const_iterator2 j = i.begin();
j != i.end(); ++j)
for ( typename Matrix_T::const_iterator1 k = y.begin1();
k != y.end1(); ++k)
for (typename Matrix_T::const_iterator2 l = k.begin();
l != k.end(); ++l)
z(j.index1()*ry + l.index1(), j.index2()*cy + l.index2()) =
(*j) * (*l);
}
const
Matrix_T
kron(const Matrix_S& lhs, const Matrix_T& rhs)
{
typedef typename Matrix_S::size_type matrix_index_s;
typedef typename Matrix_T::size_type matrix_index_t;
const matrix_index_s lhs_s1 = lhs.size1();
const matrix_index_s lhs_s2 = lhs.size2();
const matrix_index_t rhs_s1 = rhs.size1();
const matrix_index_t rhs_s2 = rhs.size2();
Matrix_T result(lhs_s1*rhs_s1, lhs_s2*rhs_s2);
typedef typename Matrix_S::value_type Scalar_S;
typedef typename Matrix_S::const_iterator1 const_iteratorS1;
typedef typename Matrix_S::const_iterator2 const_iteratorS2;
typedef typename Matrix_T::value_type Scalar_T;
typedef typename Matrix_T::const_iterator1 const_iterator1;
typedef typename Matrix_T::const_iterator2 const_iterator2;
for (const_iteratorS1
lhs_it1 = lhs.begin1();
lhs_it1 != lhs.end1();
++lhs_it1)
for (const_iteratorS2
lhs_it2 = lhs_it1.begin();
lhs_it2 != lhs_it1.end();
++lhs_it2)
{
const matrix_index_t start1 = rhs_s1 * lhs_it2.index1();
const matrix_index_t start2 = rhs_s2 * lhs_it2.index2();
const Scalar_S& lhs_val = (*lhs_it2);
for (const_iterator1
rhs_it1 = rhs.begin1();
rhs_it1 != rhs.end1();
++rhs_it1)
for (const_iterator2
rhs_it2 = rhs_it1.begin();
rhs_it2 != rhs_it1.end();
++rhs_it2)
result(start1 + rhs_it2.index1(), start2 + rhs_it2.index2()) = lhs_val * *rhs_it2;
}
return result;
}
int main() //Main function to initialize and run all tests above
{
int check, errorCounter = 0;
Matrix_T testClass;
check = testClass.inverseTest();
errorCounter += check;
check = testClass.transposeTest();
errorCounter += check;
check = testClass.solutionTest();
errorCounter += check;
check = testClass.determinantTest();
errorCounter += check;
std::cout << "Total Failures for " << __FILE__ << ": " << errorCounter << std::endl;
return errorCounter; //Return the total number of errors
}
