Animation SVS with CSS / Transform Origin in Firefox.

Animation SVS WITH CSS / Guil Hernandez, in the code on line 13 , we have d="M231.9,10.9c-1.8-0 ... ... I have the following question how this code is generated, how to explain and understand these number, demonstrate or prove anyway? ---------------------------------------------------------------------------------------------------------------<path class="gear-icon" fill="#FFFFFF" d="M231.9,10.9c-1.8-0.6-3.6-0.6-5.1,0.3L216.2,17c-1.5-0.9-3-1.2-4.2-1.8l-3.1-11.5 c-0.6-1.8-1.8-3-3.3-3.9c-1.8-0.6-3.3-0.9-5.1-0.9c-1.8,0-3.3,0.3-5.1,0.9c-0.9,0.3-1.2,0.6-1.8,1.2s-1.2,1.8-1.5,2.7l-3,11.5 c-1.5,0.3-3,1.2-4.2,1.8L174,11.3c-1.5-0.9-3.3-0.9-5.1-0.3c-2.4,0.6-3.9,2.1-4.8,3c-1.5,1.5-2.4,3-3,4.2c-0.6,1.8-0.6,3.6,0.3,5.1 l5.8,10.6c-0.6,1.2-1.5,2.7-1.8,4.2l-11.8,3.4c-0.9,0.3-1.5,0.9-2.1,1.5c-0.6,0.6-1.2,1.2-1.2,1.8c-0.9,1.5-1.2,3-1.2,4.8 c0,2.4,0.3,3.9,1.2,5.4c0.3,1.5,1.8,3,3.3,3.3l11.5,3c0.6,1.8,1.5,3.3,2.1,4.5l-5.6,10.7c-0.9,1.5-0.9,3.3-0.3,5.1s1.8,3,3,4.2 c1.2,1.2,2.7,2.1,4.2,3c1.8,0.6,3.6,0.6,5.1-0.3l10.3-6.1c1.5,0.9,3,1.2,4.2,1.8l3.4,11.8c0.6,1.8,1.8,3,3.3,3.9 c1.8,0.6,3.3,0.9,5.1,0.9c1.8,0,3.6-0.6,5.1-0.9c0.6-0.6,1.5-0.9,2.1-1.5c0.6-0.6,1.2-1.8,1.5-2.7l3-11.5c1.5-0.3,3-1.2,4.2-1.8 l10.6,5.7c1.5,0.9,3.3,0.9,5.1,0.3c1.8-0.6,3.3-2.1,4.2-3c1.5-1.5,2.4-3,3-4.2c0.6-1.8,0.6-3.6-0.3-5.1l-5.8-10.6 c0.6-1.2,1.2-3,1.8-4.2l11.5-3.1c0.9-0.3,1.8-0.6,2.7-1.5c0.6-0.6,1.2-1.2,1.2-1.8c0.6-1.8,0.9-3.3,0.9-5.1c0-1.8-0.3-3.3-0.9-5.1 c-0.6-1.8-2.1-2.7-3.9-3.3l-11.5-3c-0.3-1.5-1.2-3-1.8-4.2l5.7-10.6c0.9-1.5,0.9-3.3,0.3-5.1c-0.6-1.8-1.8-3-3-4.2 C234.6,12.4,233.1,11.5,231.9,10.9z M211.4,38.8c6.1,6,6.1,16.4,0.1,22.4s-16.3,6.1-22.4,0c-6.1-6.1-6.1-16.4-0.1-22.4 S205,32.5,211.4,38.8z"></path>