👉 In physics and electrical engineering, an "equisignal" is a signal that behaves like a sine wave or a cosine wave when viewed from a particular perspective. This can be useful in analyzing signals that are not perfectly sinusoidal but have certain characteristics that make them resemble a sine or cosine function. For example, if you were to analyze a signal that was approaching the edge of a sine wave and then returning to its original state, an equisignal would appear as such: x(t) =
