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# Monthly Archives: June 2009

## Curta Calculating Machines

[Trying to clear out the queue of draft posts here... I started writing this post in September of 2008 but never posted it for some reason!] Thanks to Rod at Reasonable Deviations, I recently read about Curta calculators — amazing … Continue reading

## Ways to multiply

Ξ at 360 has a couple of posts (with more to come!) listing a bunch of different algorithms for performing multiplication. Did you even know there was more than one? Would you be surprised to learn that over the years, … Continue reading

Posted in computation
Tagged algorithms, methods, multiplication

## Square roots with pencil and paper: method 2

A little while ago I wrote about the Babylonian method for approximating square roots with pencil and paper. In that post I noted that the Babylonian method is quite efficient, but annoying in some ways since it makes you deal … Continue reading