In this paper, we utilized triangular conorms (S-norm). The essence of using S-norm is that the similarity order does not change different norms. fact, are investigating for a new conception calculating two Fermatean fuzzy sets. For purpose, utilizing an S-norm, first present formula values, so they truthful in properties. Following that, generalize sets which prove conditions. Finally, various...

Generalized trapezoidal fuzzy numbers (GTFNs) have been widely applied in uncertain decision-making problems. The similarity between GTFNs plays an important part in solving such problems, while there are some limitations in existing similarity measure methods. Thus, based on the cosine similarity, a novel similarity measure of GTFNs is developed which is combined with the concepts of geometric...