Sampling is the process of creating a signal from a function $f$ by taking samples in time steps segmented by some equal length $\Delta T$. $ \frac{1}{\Delta T} = f $ $\Delta T$ is typically measured in seconds and $f$ is measured in [[Hertz]]. In an ideal, as $\lim_{ \Delta T \to }0$, our collection of samples approaches the complete continuous [[Image]] of $f$. Another definition is the [[Angular Frequency|angular sampling frequency]] , which is just teh sampling frequency multiplied with $2\pi$. $\huge \omega_{s} = 2\pi f_{s} $ The [[Period]] of sampling is typically called the Sampling Interval.