Fast inverse square root

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Notion

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Science and technology

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What Wikipedia says

Fast inverse square root, sometimes referred to as Fast InvSqrt() or by the hexadecimal constant 0x5F3759DF, is an algorithm that estimates

Excerpt from the Wikipedia article “Fast inverse square root”, under the CC BY-SA 4.0 license. Read the article on Wikipedia

Image: Jann.poppinga, CC0, via Wikimedia Commons.