You know that little app you use on your phone to do your calculations? It has a fun, clunky history full of interesting inventions! The history of the calculator goes as far back as 300 CE with the Salamis Tablet. Today, we can graph in 3-D and solve even the most complex abstract algebraic equations!  To read the podcast's transcripts, please visit me at www.MathScienceHistory.com. While you are there, feel free to donate to the podcast through that cup of coffee button.  Until next time, carpe diem! All music by Lloyd Rodgers - No Copyright - No rights reserved