## 1. Sampling a Waveform | Home | Next |

A sine wave *signal* can be generated with sin().

Two sine waves of different frequency

By taking measurements of a signal at regular intervals, a *discrete* signal results. Each measurement is called a *sample*:

Sine wave sampled at regular intervals

The first 10 samples are 0.00, 0.93, 0.68, -0.43, -1.00, -0.29, 0.78, 0.87, -0.15, and -0.97.