The bar model method is a great way to visualise tricky mathematical concepts and solve problems. They are a quick and easy way to represent a situation in a word problem. Bar modelling can be used to ...

Abstract: The Difference of Convex (DC) optimization problem holds significant importance in both optimization theory and practical applications. In recent years, numerous algorithms have been ...

Abstract: Express pickup and delivery systems play crucial roles in contemporary urban areas. Couriers within these systems retrieve packages from designated Areas of Interest (AOI) that the express ...

There have never been any doubts and uncertainties about the scope of economic science. Ever since people have been eager for a systematic study of economics or political economy, all have agreed that ...