This calculator is used to help make a perfect decoration for your Christmas tree. The equations used are based on a research by math students from the university of Sheffield.
The four equations are used to compute :
Fig 1: Christmas Tree Decorations
A lot of the Christmas Tree history points to the nation of Germany. The Christmas encyclopedia indicates that Martin Luther (1483 - 1546) , the protestant reformer, was the first person to decorate a Christmas tree (Tanya, 2000). Luther got inspired by the beauty of the stars shining between the branches of a fir tree, causing him to chop down and carry home an evergreen tree which he decorated with candles in order to replicate his initial experience for his children.
https://www.shef.ac.uk/news/nr/debenhams-christmas-tree-formula-1.227810
Gulevich, Tanya. 2000. Encyclopedia of Christmas. Detroit, MI: Omnigraphics, Inc.
Christmas Tree Decorations http://www.christmaswow.com/christmas-tree-decorations/