Valerie is a seasoned writer and editor who has spent her career creating content in the parenting and women's wellness spaces. Before joining Forbes Health, Valerie was the trending news editor at ...

10h Pictures: Kelly Piquet shares clicks featuring Max Verstappen, Penelope Kvyat, and Lily Verstappen from the New Year's Eve get-together Pictures: Kelly Piquet shares clicks featuring Max ...

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 ...