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DADiSP Worksheet Functions > Function Categories > Statistics and Calculus > RMS

 

RMS

Purpose:

Macro. Calculates the root mean square of a series or scalar expression.

Syntax:

RMS(series)

series

-

A series or table.

Returns:

A scalar.

Expansion:

SQRT(MEAN(ARG*ARG))

Example:

W1: gsin(100,.01)

rms(W1)

 

returns 0.707107.

Remarks:

For a series of length N, RMS computes the discrete root mean square value defined as:

 

 

See Also:

BLOCKRMS

COLRMS

HYPOT

MEAN

MOVRMS

SQRT

STD