The Easy Way to Make Your Dumb Smartphone Calculator a Little Smarter
If you’re of a certain age, you’ll remember that PEMDAS was a mnemonic that many of us learned in Math class that stood for doing equations in a certain order, namely parentheses, exponents, multiplication, division, addition, and then subtraction. We’ve all seen those posts on social media showing how the calculators on smartphones don’t understand the order of operations; apparently, they were absent from class on the day that PEMDAS was explained.