Like many of us, [Tim]’s seen online videos of circuit sculptures containing illuminated LED filaments. Unlike most of us, however, he went a step further by using graph theory to design glowing ...

In this math tutorial, I present a five-step method for graphing the cosecant function effectively. We utilize the relationship between cosecant and sine, starting by replacing cosecant with sine to ...

Author’s note: This article shows how to derive circuit gain equations via a signal flow graph. With practice you may be able to write a gain equation by locating signal paths and loops in the ...