If you thought #Tengri137’s Odin Triple Horn was cool, then check out my 20 perfect squares “Sigma” ∑ symbol! #WayBetter #Cicada3301

Here is a screenshot: https://twitter.com/MathEasySolns/status/851215101675700224

View Video Notes on Steemit: https://steemit.com/tengri137/@mes/video-notes-tengri137-part-4-tengri-137-odin-s-triple-horn-calculator-amazing-mes-sigma-symbol