Two mathematicians have proved that a straightforward question—how hard is it to untie a knot?—has a complicated answer.

Here is a close look at the common- versus differential-mode voltage and instrumentation amplifier (IA) topologies.

Statistical models predict stock trends using historical data and mathematical equations. Common statistical models include regression, time series, and risk assessment tools. Effective use depends on ...

The Philippines has been one of the most dynamic economies in the East Asia and Pacific region. Its economic dynamism reflects increasing urbanization, a large and young population, and strong ...