I came across an interesting question on stack overflow that I couldn't help answering. The question asks how to determine which resistors from a given pool have an equivalent parallel resistance as close as possible to some target. This jumped out at me as a fun little combinatorial problem to …

This notebook calculates marginal loss factors of a power system using automatic differentiation.

The marginal loss factor (MLF) at a connection node is defined as the rate of change of system generation at the reference node with respect to the change in load at the connection node. The reference node …

"Multilateration (MLAT) is a surveillance technique based on the measurement of the difference in distance to two stations at known locations by broadcast signals at known times." - en.wikipedia.org/wiki/Multilateration

Abstract

A single motivated individual with several hundred USD and a hobbyist level of competency in electronics and …