bool Scalar::CollectTerms( SumOfTerms& sumOfTerms )
{
SumOfTerms::Node* node = sumOfTerms.Head();
while( node )
{
Term* term = node->data;
term->CombineFactors();
term->productOfFactors.Sort( Term::ProductOfFactors::SORT_ASCENDING );
node = node->Next();
}
SumOfTerms::Node* nodeA = sumOfTerms.Head();
while( nodeA )
{
Term* termA = nodeA->data;
SumOfTerms::Node* nodeB = nodeA->Next();
while( nodeB )
{
Term* termB = nodeB->data;
SumOfTerms::Node* nextNodeB = nodeB->Next();
if( termA->CombineWith( termB, false, false ) )
sumOfTerms.Remove( nodeB );
nodeB = nextNodeB;
}
}
nodeA = sumOfTerms.Head();
while( nodeA )
{
Term* termA = nodeA->data;
SumOfTerms::Node* nextNodeA = nodeA->Next();
if( termA->IsZero() )
sumOfTerms.Remove( nodeA );
nodeA = nextNodeA;
}
return true;
}
bool Scalar::Scale( double number )
{
if( IsZero() )
return true;
for( SumOfTerms::Node* node = sumOfTermsNumerator.Head(); node; node = node->Next() )
{
Term* term = node->data;
if( term->IsZero() )
continue;
NumericalFactor* numericalFactor = ( NumericalFactor* )term->FindTermOfFactorType( Factor::NUMERICAL );
if( !numericalFactor )
{
numericalFactor = new NumericalFactor( 1.0 );
term->productOfFactors.InsertBefore()->data = numericalFactor;
}
numericalFactor->number *= number;
}
return true;
}