GACOS

Purpose:

Generates an arc-cosine series in accordance with the specified parameters.

Syntax:

GACOS(length, spacing, factor, offset)

length	-	An integer, the length of the output series.
spacing	-	A real, the spacing (delta x) between each point on the x-axis.
factor	-	Optional. A real, the expansion factor along the x-axis. Defaults to 1.
offset	-	Optional. A real, the offset along x-axis, specified in radians. Defaults to 0.

Returns:

A series.

Example:

gacos(100, .01, 2, .5)

creates an arc-cosine series of 100 points spaced .01 x-units apart. The series is also be shifted by .5 units (the offset value) on the x-axis, and compressed by a factor of 2.

Remarks:

The formula used to generate each point, n, in the series is as follows: