RubyConf 2022: 1.5 is the Midpoint Between 0 and Infinity by Peter Zhu

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Confreaks

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42,400

Published on March 7, 2023 4:00:15 PM ● Video Link: https://www.youtube.com/watch?v=RQsH54GK85M

Duration: 24:19

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What’s the midpoint between 0 and infinity? Well, the answer differs depending on whether you are asking a mathematician, philosopher, or a Ruby developer. I’m not a mathematician or a philosopher, but I am a Ruby developer, so I can tell you that 1.5 is the midpoint between 0 and infinity. In this talk, we'll discuss the binary search algorithm, IEEE 754 floating-point numbers, and a clever trick Ruby uses to perform binary search on floating-point ranges.