As far back as the year 2000, a bookstore on Charing Cross Road in central London bore a sign that said "Any Amount of Books." These days one often hears people conflate not only "amount" and "number" ...

Analog circuit design is increasingly encountering mixed-signal circuits, and analog engineers need some understanding of discrete-time sampling circuits, whether they are sample-and-hold circuits or ...

Figure 4. A snapshot, in time, of two complex numbers whose exponents, and thus their phase angles, change with time. The notion of negative frequency is often troubling to engineers who've spent so ...