21.2.1  Root mean square

The rms command finds the room mean square of a list of numbers X=[x₁,x₂,…,x_n], which is defined by

(See Section 28.2.16 for other uses of rms.)

• rms takes X, a list of real or complex numbers [x₁,x₂,…,x_n].
• rms(X) returns RMS(X) as defined above.

Examples