Resistance Shimako resistance-shimako
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| // IbukiHash by Andante (https://twitter.com/andanteyk) | |
| // This work is marked with CC0 1.0. To view a copy of this license, visit https://creativecommons.org/publicdomain/zero/1.0/ | |
| float ibuki(float4 v) | |
| { | |
| const uint4 mult = | |
| uint4(0xae3cc725, 0x9fe72885, 0xae36bfb5, 0x82c1fcad); | |
| uint4 u = uint4(v); | |
| u = u * mult; |
Marc-B-Reynolds
/ gist:53ecc4f9648d9ba4348403b9afd06804
Last active
May 15, 2025 06:19
LCG/MCG multiplier tables for 32 & 64 bits
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| // 1) "Tables of linear congruential generators of different sizes and good lattice structure" (1999), Pierre L'Ecuyer | |
| // 2) Pre-print version of (3) (https://arxiv.org/abs/2001.05304) | |
| // 3) "Computationally easy, spectrally good multipliers for congruential pseudorandom number generators" (2021), Guy L. Steele Jr. & Sebastiano Vigna (https://onlinelibrary.wiley.com/doi/epdf/10.1002/spe.3030) | |
| // inline comment number is bit width of constant | |
| const uint32_t lcg_mul_k_table_32[] = | |
| { | |
| // (3) Table 4 LCGs | |
| 0x0000d9f5, // 16 |
publik-void
/ sin-cos-approximations-gist.adoc
Last active
March 5, 2026 13:24
Fast MiniMax Polynomial Approximations of Sine and Cosine
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| local bytecodes = {} | |
| local BC, run_function = {} | |
| local VARG_CONST = {} | |
| local lujlu_mt_funcs | |
| local lujlu_cache = setmetatable({}, {__mode = "k"}) | |
| local lujlu_identifier_mt = { | |
| __tostring = function(self) | |
| return tostring(lujlu_cache[self].data) | |
| end, |