Tag Archives: Chandoo

VBA vs Power Query vs Python

Posted on 04/08/2018 by dougaj4

A recent post at Chandoo’s Excel Forum asked for a formula to extract all pairs of digits from a number with 4 digits.  This was soon extended to dealing with longer numbers, and the examples looked at here will work with … Continue reading →

Posted in Arrays, Excel, Link to Python, UDFs, VBA, xlwings | Tagged , , , , , , , | Leave a comment

Yet more pendulums

Posted on 24/06/2011 by dougaj4

Following Dynamically Defined Dancing Pendulums, another three versions of the dancing pendulum theme.  First a POV-RAY version by PM 2Ring, complete with reflections and shadows: POV-Ray Pendulums (click to open in a new window) and an interactive Javascript version: Javascript pendulums by PM2Ring (click … Continue reading →

Posted in Animation, Excel, Newton, Ray Tracing | Tagged , , , , | 1 Comment