Average recurrence intervals are a way of explaining how rare an event is, by comparing how often, on average, the particular event of interest has occurred in the past - more than once a year, more ...

The David Rockefeller Studies Program—CFR's think tank—analyzes pressing global challenges and offers actionable steps that policymakers and citizens can take to address them. The more than ...

We all know that calculus courses such as 18.01 and 18.02 are univariate and vector calculus, respectively. Modern applications such as machine learning and large-scale optimization require the next ...