In a recent write-up, [David Delony] explains how he built a Wolfram Mathematica-like engine with Python. Core to the system is SymPy for symbolic math support. [David] said being able to work ...

We've been studying them for millennia, so how far have we come?

Move over, Calculator. The Messages app can tackle advanced calculations and even convert numbers to different formats.

Abstract: This paper proposes a fractional observer-based sliding-mode control for a generalized nα -differentiator with the aim of achieving closed-loop asymptotic stability. The proposed methodology ...

Next November, Oregon voters will elect a U.S. senator, six members of Congress, governor, labor commissioner, 15 state senators and 60 state representatives, as well as hundreds of local ...