Sinus

oidal Wave A sinusoidal wave is a type of periodic waveform which has a shape resembling a sine curve. It is a special case of an oscillating wave, and is of great importance in physics, mathematics, and engineering due to its wide range of applications. In radio communications and telecommunications, sinusoidal waves are used as a carrier signal to transmit information. In electronics, they are used as a convenient way to represent voltage and current oscillations. They are also used to represent acoustical waves, such as sound and seismic waves. Additionally, they are used in control theory to represent the dynamics of linear analog systems.