Talvez deva tentar algumas variações de ortografia:
functional approximation » function approximation (Expandir a busca), fractional approximations (Expandir a busca), rational approximation (Expandir a busca)
approximation algorithm » approximation algorithms (Expandir a busca), propagation algorithm (Expandir a busca)
decrease functional » depression functional (Expandir a busca), discourse functional (Expandir a busca)
algorithm drop » algorithm to (Expandir a busca), algorithm of (Expandir a busca), algorithm on (Expandir a busca)
drop method » group method (Expandir a busca), dcp method (Expandir a busca), group methods (Expandir a busca)

Você pode obter mais resultados ajustando o argumento de busca.

• Adicionar um caractere curinga pode recuperar variações da palavra buscada: decrease functional approximation algorithm drop method*.