Math, Pre-Internet Style

One of my graduating seniors (thanks, Kendal!) just gave me an antique math text as an end-of-the-year gift. It’s a slim little volume entitled Formulas – Cube Root – Logarithms, and it was published in 1921 by the International Textbook Company.

As I was browsing the pages, I was struck by the sheer mental labor that mathematics required back then. Imagine a world without cheap scientific calculators, let alone one without computers and the internet. For example, look at the steps outlined in this book that are necessary to derive a cube root (click on the  image to zoom in):

There are 24 pages devoted to the single task of deriving cube roots, something any $10 calculator can do in milliseconds, or you can just type it into a website like wolframalpha:

I have new appreciation for those who did so much with so little technology.

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