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importantSYS.SOURCE: purplesyringa's blog• 2026-07-23T14:00:48Z

Non-Monotonic Logarithm Behavior in PHP and Lua Due to Implementation Choices

#php#lua#floatingpoint#logarithm#software

The article explains why logarithmic calculations in PHP and Lua can exhibit non-monotonic behavior when using specific bases, due to implementation differences in handling logarithm functions. It highlights how special-casing base 10 and 2 operations leads to discontinuities that violate expected mathematical properties.

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