Delta function

The Delta function, often denoted as the Dirac delta function, is a mathematical concept that is used to represent an idealized point source or point charge. It describes a function that is zero everywhere except at a single point, where it is infinitely high, and its total area is equal to one. This makes it useful in physics and engineering for modeling situations where something occurs at a specific location or time, such as an impulse or a sudden force. It helps simplify complex problems by focusing on these "point" occurrences.