When the Alfa Romeo 4C arrived, it was positioned as an exotic-feeling sports car with a relatively attainable price, and ...

First-order derivatives: n additional function calls are needed. Second-order derivatives based on gradient calls, when the "grd" module is specified (Dennis and Schnabel 1983): n additional gradient ...

In pressure relief systems, accurately estimating temperature changes during fluid flow is vital for relief piping ...

National security, unlocked. Each Thursday, host Mary Louise Kelly and a team of NPR correspondents discuss the biggest national security news of the week. With decades of reporting from battlefields ...