RDERIV

Purpose:

Calculates the derivative of a series using a right-to-left algorithm.

Syntax:

RDERIV(series)

series

-

An interval or XY series, the series to differentiate.

Returns:

A series or table.

Example:

rderiv(W3)

 

creates a new series from the contents of Window 3 and places the result in the current Window. The value of each point in the new series will be the slope of the series in Window 3 at that point.

Remarks:

RDERIV computes the derivative at each point n of series s as follows:

 

image\rderiv01.gif

 

The derivative of the last point is computed using the method of LDERIV.

See Also:

INTEG

LDERIV

DERIV