- Accepts Etsy gift cards
Another example of a design springing from my fascination with the Fibonacci series. Beginning with a pie chart representing the first 11 values of the series [1,1,2,3,5,8,13,21,34,55,89] the slices are successively rotated and reduced in size to illustrate the fact that each slice represents the value of the previous two added together.
It takes some seeing but, once seen, it is a true 'Aha!' moment. To begin with the outer dark blue slice  is made up of the purple and rose slices [55 &34]. The purple slice  is then shown to be equivalent to the rose and orange slices [34&21] and so on.
The two largest values are only shown as strips - their slices are removed to allow the remainder of the design to dominate the canvas rather than languishing as a smaller circle in the centre. The design was the first fruits of playing around with the extraordinary Mathematica software from Wolfram.
Designed by David Lawrence, d/dx art prints are created on 315 gsm Canson Infinity Museum Rag produced at the centuries-old Arches paper mill in France. This superb art paper is acid-free and uses no optical brighteners to degrade over time. Ultrachrome K3 inks provide vivid colours which will last without fading for many decades in normal conditions. The robustness of the paper makes DIY framing a simple matter.
This print is standard European A4 (210*297mm) in size and is unframed [An A3 version is available as a separate listing – contact me if the A3 listing is missing]. It will be packed flat in a crystal envelope with cardboard stiffener and posted in a rigid protective container.
We accept credit card, debit card, etsy gift cards, and PayPal payments through Etsy.
We post items wherever possible within 2 working days. Prints are posted in rigid boxes via Royal Mail (First Class within the UK).
Just contact me within: 14 days of delivery
Ship items back to me within: 30 days of delivery
But please contact me if you have any problems with your order.
Because of the nature of these items, unless they arrive damaged or defective, I can't accept returns for:
In the unlikely event that there is a flaw in your print we are happy to exchange it or refund the price on return. In the event of damage in transit, it helps if you can provide photographic or other evidence so that we can claim from Royal Mail.
The colours you are seeing on your monitor are inevitably not precisely the colours you would see if you were looking at the same design in printed form. There is simply no way around that, since the internet places limits on the range of colours that can be displayed and, even if that were not the case, every monitor is subtly (sometimes wildly!) different in the way it displays colours.
But you can be reassured that the quality of our equipment is such that colours and quality are consistent over time and the print you receive will be identical to other prints sold in galleries and art fairs to buyers who have every opportunity to handle and assess them.