iwasjustkidding: iridescentcatharsis: macmuffinpro: picnicinparadise: HOW DID I NOT KNOW THIS?! Why do I learn more about math from Tumblr than my 12+ years of formal education???????? No math teacher ever taught me this trick. Got damn. This is
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original: https://tungos.tumblr.com/post/99085582579