nexp_u32(9)

💖 nexp_u32(9) — the Kernel API Manual bestie edition 💖

okay so bestie, welcome to the nexp_u32(9) page from the Kernel API Manual — yes, the manual name is literally right there in the title, we love a self-aware icon ✨

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✨ NAME ✨

nexp_u32 — negative base-e exponential 🧮💅

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🎀 SYNOPSIS 🎀

u32 __pure nexp_u32 (u32 ux );

that's the whole signature, no cap — u32, __pure, nexp_u32, and one ux argument, exactly like that 🫶

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🌸 ARGUMENTS 🌸

• ux — this is x in units of micro 👑 so like, micro-units, that's the vibe, iykyk

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🦋 DESCRIPTION 🦋

okay so what does it actually do? it returns:

exp(ux * -1e-6) * U32_MAX

literally that. negative base-e exponential, multiplied by U32_MAX, periodt 💅🔥

like the function name says — negative exponential — and the -1e-6 is right there in the math, no guessing, we don't do that here 🙈

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🌈 SEE ALSO 🌈

• Kernel file ./net/ipv4/tcp_cdg.c — go look, bestie, it's giving source-file energy 📂✨

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and that's the whole page, fr fr 🍓

lowkey iconic that a tiny math function gets its own manpage — main character energy only 💜

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cute sign-off time: this lil page comes from ./net/ipv4 and is dated October 2026 — so when you see that footer, just know it's the source/version/date combo saying hi 🎀🫶💖