Heaviside step function

The Heaviside step function is a mathematical tool that switches abruptly from zero to one at a specific point, typically zero. It’s like a switch that is off (0) until a certain moment, then turns on (1). In practical terms, it models situations where an action starts suddenly, such as a machine turning on or a signal being sent at a particular time. This function helps professionals analyze and describe systems that change states instantaneously, making it useful in engineering, physics, and signal processing.