In this paper, by way of three examples â€“ a fourth order low pass active RC filter, a rudimentary BJT amplifier, and an LC ladder â€“ we show, how the algebraic capabilities of modern computer algebraâ€¦ (More)

The Harborth graph is the smallest known example of a 4-regular planar unit-distance graph. In this paper we give an analytical description of the coordinates of its vertices for a particularâ€¦ (More)

â€” In this paper we describe by a number of examples how to deduce one single characterizing higher order differential equation for output quantities of an analog circuit. In the linear case, we applyâ€¦ (More)

In this paper we show how to extend the known algorithm of nodal analysis in such a way that, in the case of circuits without nullors and controlled sources (but allowing for both, independentâ€¦ (More)

Being inspired by phasor analysis in linear circuit theory, and its algebraic counterpart â€“ the AC-(operational)calculus for sinusoids developed by W. Marten and W. Mathis â€“ we define a complexâ€¦ (More)

Being inspired by phasor analysis in linear circuit theory, and its algebraic counterpart â€“ the AC-(operational)calculus for sinusoids developed by W. Marten and W. Mathis â€“ we define a complexâ€¦ (More)