This function is a simple two-dimensional example which occurs several times in the literature on computer experiments. Currin, C., Mitchell, T., Morris, M ...

The equiangular spiral is an example of a simple but fascinating scalar exponential function. The author explains how the scalar exponential can be extended to the multidimensional matrix case to ...

The explosive spread of coronavirus can be turned to our advantage, two infectious disease experts argue: “But only if we intervene early. That means now.” By Siobhan Roberts In early December, Britta ...