Support for measurement units in R vectors, matrices and arrays: automatic propagation, conversion, derivation and simplification of units; raising errors in case of unit incompatibility. Compatible ...

Legions of battery engineers and their supporters have sought for years to build batteries cheaper than the dominant lithium-ion technology, hoping to capture some of lithium-ion's $50 billion-a-year ...

Is there a point anymore in explaining what makes the r-word offensive? Everybody knows why it’s ugly and vicious. Today’s trolls use it because it crosses a contested boundary, as a ...