It is worth noting that a -90 degree phase shift of a sine wave is also called a cosine wave. As you can see below, the cosine wave starts at 1 and drops while the sine wave starts at 0 and increases.

Working with the graphs of trigonometric functions Phase angle. ... As \(a = 10^\circ\), this means that the sine graph has been shifted to the right by 10˚. The graph looks like: Next up.

Sine-wave generators with 0° to 360° phase-shifts are very important testing blocks in many systems involving DSP operations (i.e., I/Q modulator-demodulator communication, phase ...