 Pulse

A pulse is a localized disturbance that passes a fixed location during a bounded or effectively bounded time interval. A travelling wave pulse may be written $y(x,t)=f(x-ct)$ with localized $f$. Its width and peak amplitude describe its extent and size; a wave packet additionally emphasizes a carrier and an envelope.

"Pulse" can refer to different concepts depending on the context: 1. **Medical Context**: In medicine, a pulse refers to the rhythmic expansion and contraction of an artery as blood is pumped through it by the heart. It can be measured at various points on the body and is an important indicator of heart rate and overall cardiovascular health. 2. **Technology and Media**: "Pulse" might refer to various applications or platforms.