ID 215427475 © Katemishchenko7 | Megapixl.com
Sharing is not just caring, it's also about giving credit - add this image to your page and give credit to the talented photographer who captured it.:
math physics technical algebra mathematics geometric calculation mathematical chalk geometry blackboard theorem function formula equation trigonometry education science school study analysis angle background knowledge black vector circle complex design division doodle drawing graph handwriting illustration learn manuscript number page pattern plot problem sign solution symbol texture theory triangle white writing