Hello RPL geeks,

I need your help!

I want to program a something which is feed by a list of two dim. vectors (the control points) and has bezier points (as vectors, too) as an output.

The problem for is the input or more precise to get the right three points.

The points are po, p1, p2, p3, p4, ...and so on.

Input: {po p1 p2 p3 p4 p5 p6}

I want a to get these lists:

{{po p1 p2} {p2 p3 p4} {p4 p5 p6}} or

{po p1 p2 p2 p3 p4 p4 p5 p6}

This can be of course be programmed with direct accessing to the list, but maybe somebody know a method which uses the "parallel" list processing features of the HP 50g.

The three functions "DOLIST", "STREAM" and "SUBSET" don't solve my problem as far I know.

Sincerely

peacecalc

*Edited: 28 Jan 2013, 3:52 p.m. *